yes, in some sense US citizens are second-tier. Businesses want to lower salaries and universities want to charge higher fees. So US citizens miss out on higher salaries and placement at universities in their own country because we create this myth that we need to keep bringing in more immigrants to continue to thrive. There's no evidence given that diversity/immigration is our greatest strength either but you're not allowed to question it. There's plenty of evidence we and other countries do fine without it.