This was the old Google, new Google lays off teams and moves them to India. New grad hiring is all but paused, hiring just enough to Seniors to backfill attrition and trying to slot them in at n-1 or n-2 levels.
I've also been told for a company I will not name that had I been asian they would have called me, I just assume there's an overwhelming number of asian employees, not that there's anything wrong with that, but if they're discriminating against everyone else from being hired, that's not ethical or legal in the US.
But, I often see this presented as all or nearly all that is going on. There are lots of non-immigrant visa holders who get hired who are better qualified then 90+% of others, and are getting the same pay and conditions and their American teammates. These people are improving the employment prospects for Americans, not hurting them.