Blanket Amnesty to illegals is my number one issue along with excessive legal immigration of low skilled, low money people.
But entire GOP hierarchy is in the pockets of mega-rich donors. And the donor class wants the cheap labor express. So there is no surprise all career politicians stick together for the cheap labor express. Without their mega-rich sugar daddies, not one of them can survive in the next election cycle. Follow the money, and all fog gets cleared.
This is something I have only in recent years found to be true in virtually all cases.