Not to speak on the anguish that this would undoubtedly cause but economically? This is like shooting yourself in the kneecap. America doesn’t nearly have the social security net of European countries and ours is already overburdened. Without younger, immigrant workers paying into our social security net the US govt will either need to print money (double digit inflation) or start raiding the evil tech bros RSUs for Medicare money.

Being a natvist is an expensive proposition. Expect your retirement to decrease in real value and struggle to find acceptable healthcare as you age (healthcare in the US is increasingly staffed by immigrants, especially nursing).