I am not aware of such a bias, and I have a half a dozen Indian relatives living in the USA (I am an Australian with one Indian parent, currently living in the USA). I have not studied any current place-of-origin biases in particular (I know historically they were dreadful and for all I know they still are. Certainly the rhetoric is).
> ...that of Canada and Australia where the most productive humans with greatest potential are allowed in...
Ah, but it's all about who decides what is deemed "with the greatest potential". It's what is believed to be needed now of course, whether nurses, plumbers, or geneticists, but what about poets, lunatics, or those who write music I don't enjoy?
What specifically do you mean by that. As far as I know many Indians get Resident visa because of their skills.
My bad, since you are talking about US, yes I agree with you.
And thats what the earlier comment by throw2bit was referring to, that its better to build a wall to keep illegal immigrants out while reforming the legal immigration to be similar to that of Canada and Australia where the most productive humans with greatest potential are allowed in, irrespective of which country they were born in.