I remember as late as circa 2019 even your average non-berniecrat lib could articulate a critique of Trump's immigration policy, but since Trump's policy became Biden's policy you'd think they've always cheered on the wall and the internment camps
Seems like what we have here is the ratchet effect on steroids
Remember, the militarization of the border and the already-existing border wall started with Clinton's Operation Gatekeeper. Liberals were never about open borders with Mexico, no surprise there.
Trump just wanted a continuous wall along the entire southern border from California to Texas, but the first to build a wall and militarize it was a Democrat. Trump's wall was just the logical conclusion to Clinton's. I used to rub this in libs' faces and they'd deny it, but now that Biden did this they would probably openly defend it again.