Why not just redirect the bus routes back to the “once upon a time” border? Sure would solve a lot of problems if we dumped them back into Mexico, at least for a while until the came across again.
But this ruling is for LEGAL immigrants waiting for visas for years. The court just ruled that it is rather foolish to do things the legal way and wait your turn - just cross where you can illegally. You will not be sent back and at least you are in the US like you have aspired to be legally for years. (It didn’t say that last part but that is the common sense approach that this ruling reinforced.)
These people were from El Salvador and it was a case of legal immigration. Legal immigration shouldn’t be a byzantine system.