I'll try to be more clear with my central point: American exceptionalism is very likely the direct cause of mass migration. Immigrants are not trying to replace Americans because America is exceptional; Americans are trying to buy immigrants, to maintain American exceptionalism. The dynamic is quite possibly entirely reverse of what is commonly described; and the same dynamic appears to be playing across the West.
Change "American exceptionalism" with "neoliberalism" and you're closer to the point.
"Americans are trying to buy immigrants" which Americans? The ones in Omaha or the ones in Silicon Valley?
This is like blaming the Civil War on the West Virginian and north Alabaman poor whites that never owned slaves because the rich in their states did, so they must've all been for it. America is geographically stratified, in that when you go to rich areas you get both physically and socially isolated from reality, into a world where neoliberalism is desirable for the sake of profit. This is all about profit.
"The same dynamic appears to be playing across the West" because the West is neoliberal. Thatcherist austerity never died in the UK (thanks to Blair) and look how they're faring with costs rising for everyone while only the London rich see any growth.
The US is more decentralized but the goal is the same.
the reason India is currently being drawn from for labor is because we've already attracted what we could of Mexican and broader Latin American talent.
Mexicans are lower-class field slaves, Indians are higher-class white collar slaves.
You said it earlier, but if all they come to America for is to earn higher wages,
then that's all they'll value about America. Imagine thinking corporate America gives a fuck about history or culture LMAO
Edit: Even if you're trying to play this Clinton-era "America is the leader of the free world!" thing, then I'd like you to explain that to Arab-Americans in the 2000s (who were actually economically contributing), who the DHS seemed much more eager to police even if Mexicans wound up being the largest group of deportees. We got involved in Iraq and Afghanistan and created refugee crises (for more cheap labor), and are still getting involved to do the same thing in the Mexican cartel wars and Palestine, so please enlighten me about American selflessness