Trump was right on immigration and I'm pretty sure both sides were majorly pissed off that he showed how easy it was to control.
After years of hand-wringing and BS claims from both parties of inability to do anything he instituted Remain in Mexico, which was a simple and effective measure. Without the promise of catch-and-never-see-your-ass-again, it was amazing how quickly things changed and the caravan geniuses decided it wasn't worth the walk.
Then he threatened Mexico with tariffs if they continued to sit on their hands. 24 hours later Mexican troops were on the border.
Now, Biden has lifted Remain in Mexico, which is outright idiotic, caravans are moving again and he's asking Mexico for help, which is an obvious charade as if he wanted it all he had to do was nothing.
Trump was right as rain on this shit. Biden is nothing but the typical corporate shill, continuing with failed policies that were shown to be ineffective and relatively simple to improve upon. Total sell-out, opening the floodgates wide again to let in the Dem voters of the future.