They are importing millions of Democrat voters. The Democrats have figured out that while the “free” housing and “free” medical care might not be that great, it is better than what the illegal aliens are used to, so they will eagerly vote Dem. The Democrats don’t have to do much beyond letting them them in, give them Medicaid and sign them up to vote.
EVERY Bush League Republican that supports amnesty/open borders KNOWS they are importing a permanent Democrat majority.
The only ones who don’t are the idiots who keep re-electing them.