It’s just populism with no long term planning. They’ve decimated the job market, people are hurting, have given folks someone to hate, it’s an easy win for them.

A lot of Trump's support comes from people wanting to and happy to blame immigrants (of all kinds) for legitimate grievances - such as unemployment, expensive healthcare, housing, and inflation. The distinction between legal and illegal immigration is blurred not only by Democrats but also the economic populists occupying Trump's base. This is aimed at them.