“If he makes them go back while he also starts enforcing the border, they CAN’T come back, because they don’t have visas or green cards.”
What he said. 100% correct.
If there is a legislated legalization amnesty, then of course they could get green cards. That's what a legalization amnesty is.
Question to Donald Trump: You have said that you want to expedite them the non criminals, the good ones back legally. Would you sign off on a Ryan/McConnell touchback legalization amnesty, yes or no?