Our immigration policies pretty strongly indicate we still need those less educated people doing work, we just don’t want to pay anything resembling reasonable wages for such.

I agree that our system relies heavily on uneducated migrants for menial labor.

However, uneducated people in the 1950s regularly got jobs in factories that paid enough for a single income to support a family.

That opportunity for uneducated Americans won't come back, regardless of our immigration policies.