The immigration policy of the last ~13 years was not reached by a singular, 1-time 52% consensus. They were the product of decades of often bipartisan legislature, and both-parties-taking-turns partisan executive policy, much of it set decades ago, with plenty of opportunity in the intervening years for steering and review.

You're acting like some prior President cracked his knuckles one day, and signed an EO to import 15 million people in, and justifying the unconstitutional insanity of the past 8 months based on that falsehood.

You're drawing a false equivalence fallacy, and covering blatantly illegal and unconstitutional actions. A 52% consensus isn't enough to achieve those, either. You need 66% consensus in Congress, and 3/4s of States.

If the issue is as existential as you think it is, it's on you to build the consensus necessary to achieve that. If you can't, tough luck.