I don't think our politicians want murderous drug dealers. However, our government has no problem letting in Muslims. That should be the big concern. Muslims are much better known for beheading people than Mexicans.
Considering the views of immigration, obviously many (not all) of our politicians have been bribed by drug dealers and other criminals and special interest groups.
For anyone to support amnesty, an unprotected border, and this invasion of US, they have to be traitors/One World supporters, bribed, blackmailed, and/or suffering from mental defects.