The real problem with immigration is not the migrants themselves - it is the governing authority, but more The People who select the authority, which stands in the way of migrants.
The state imports migrants, en masse, for some hidden reason, commanded indirectly and legally by The People.
You cannot really tell if migrants are good for the economy or not. All we can tell about migrants is that they are humans like you and I.
So at the root level - migrants or natives, makes no difference whatsoever to the productivity of an economy.
It's no use pointing to an alleged inferior culture of the immigrants or their specific religion. There is no way to measure this scientifically. Besides, what we can say with much more certainty, is that cultural differences pale into insignificance if you can find the strength to look into what I'm saying below, with authenticity anyway.
The real problem with immigration is not the migrants themselves - it is the governing authority which works on behalf of The People, which stands in their way. And yes, this authority is working for both the natives and the migrants curiously. Once a migrant is in, they are now a part of the collective of The People to all intents, notwithstanding the law, human rights and so on and son on. And will soon be demanding newer migrants are treated with the same contempt they used to receive - victim become perpetrator.
This immigration scenario is a perfect exposition of The People, on the whole. And on a higher level of understanding, the existential problem at hand.
No politicians are pointing this out, pro or anti immigration. So politicians and the media cannot be relied on for an answer here. And our academies of learning are the walking dead on this, so no help will be found there any more.
One has to delve into it oneself, IF, one want to be authentic about it.
Being authentic means: to look at a thing, with all worldviews suspended while you look at the thing - you look at it as if suspended in front of you, and without judgement of any kind. Just look at it for what it actually is free from the judgement of cult, religion, morals and so on. The approach being to stop looking at something through the spectacles of ones prejudices - to stop judging something. Prejudices are not necessarily good or bad things. But they do blind you to whats really happening, good and bad. If you don't want to be authentic then what can be said about it? If you don't look at the thing in suspension, all you have is an image of the world, and not the word itself.
The real problem with immigration is not the migrants themselves - it is the governing authority which stands in their way. Remember, the governing authority is not God, the state, government, wealth and power, a tyrant, the president or prime minister. It is The People. So a solution might be found at the root, by speaking truth not to Power, but to The People. For Power will simply do an excellent job of avoiding this 'speaking so called truth', on behalf of The People. In a circular passageway.
What do I mean by "stands in their way". At a higher level of understanding I mean that all authority exploits those it claims to be protecting, far more than they are protecting them. Much like in a simpler level, do street gangs. Authority may give some protection. But it exploits 'the protected' so much more. This is not a political factor. It is a generic human one where society dominates the worldview of the majority, in the same way as a cult might do. It runs across all political worldviews equally as the dominant factor.
On a lower level of understanding, the kind we see daily in the media programming we love so much like a drug, soma, I mean that government policy around the world is to import migrants en masse for whatever latent purpose they refuse to make clear, and then block them from access to the very things they came here to seek. Largely blocking the migrants to starting a business or a decent job where they could tend properly to their household. In the identical way to how the natives are already treated. Or 'ask' themselves to be treated - also known as 'asking for protection'.
This is another kind of collective pathology. That's to say, its a systemic illness governed by the authority, yet deliberately selected by the entire collective of people in that time and place. So if you are being truly authentic about this subject, its no use blaming wealth and power. You have to take it directly to the source - The People. Authority is just a proxy for The People in the end.
So the state imports migrants, en masse, for some hidden reason, commanded indirectly and legally by The People. We can talk about the latent policy elsewhere, because it is superficial to this higher hidden reason.
Then under the same command hierarchy, the state makes it very difficult for the migrants to find work or startup a business. A kind of suicidal pathology. Largely through heavy taxation of earned incomes in the material world sense. While leaving un-earned incomes virtually untaxed. Leading to speculation in the latter, raising rents everywhere relatively. Creating a destructive positive feedback loop for the migrants and their brother class of natives.
Eventually, the newer tranche of migrants will join the natives on welfare, because that provides more income(AKA benefits handcuffing). So whatever is the de facto, but latent reasoning behind immigration policy, destroys itself, in the end. Even if the natives are not willing to do low skilled work, soon the migrants will join them in the same place. And a newer tranche of migrants will be in demand. And so it goes...
So what is the answer? I refuse to tell you. Because if I do you will dismiss it out of hand, saying that it would have been tried already if it could work. Or you will roll out a thousand theories long ago answered a thousand times. Or that I am an amateur and you only pay respect to experts, celebrity or wealth and power. Or academic books which can only tell you to believe what someone else tells you to believe, but does not know in their own right!
But this is to miss the point. If you are an authentic person, I've given you plenty of hints above about how to think for yourself about this, free from a dominating worldview leading your thought...if you are authentic. If you want to remain protected by a Master, a gang leader, then do not bother of course. Your call.
Concluding, I am pro immigration. And sympathise as fully with the migrants as I do the natives for identical reason - they are all humans like me, so I support them all fully for the same reasons. Migrants can no more produce more in an economy than can the natives. And visa versa. It is The People ultimately who are deliberately, if unconsciously, blocking themselves, both migrants and natives equally, from the gifts of a well functioning economy.
It has nothing whatsoever to do with wealth and power, those who so skilfully avoid tax, or racism. All of these and others are political ideas whose first duty is to very successfully help The People to escape from own complicity. A cowards way out. The politicians who rise to the top are those who help The People to escape in the greatest number. But ultimately it is The People who chose this. If the The People were to ignore these clowns and actors, what do you think would happen?
It has everything to do with The People themselves, who are possessed by society, a kind of pathological gang and the protection we mistakenly think that delivers. The state and its media merely deliver the programming that helps us to think otherwise. While it exploits the migrants and natives equally as a kind of payment for doing their work so successfully for The People who keep demanding it - a systemic pathology. Maybe a psychopathy.
I am pro immigration - the problem with immigration is not the migrants themselves. Blame for the worlds problems falls fully on The People, who thanks to society itself, and as a collective cult, not a group of individuals, is psychopathic. Evidently!