Opening pathways to legalization works - that is the reason Republicans try to block them.

DACA = successful
TPS = successful
Registry (previous years) = successful
Ukranian refugee program = successful
Cuban, Venezuelan, etc asylum program = successful and unauthorized crossings have plummeted.

Well, we have the lowest unemployment in decades and a massive need for essential workers, especially in healthcare. If Ukranians can be sponsored for a couple of thousand of dollars, then a registry and legalization program, DREAM Act, or whatever you want to call it, can be implemented quickly. And MODERNIZE the system.