re: Man in the High Castle - Season 4 - spoilers

John's wife in the last episode asking him to stop what hes doing, and he says "I dont know how."

It's easy. You rule North America. Just say stop. John starting another holocaust was completely unbelievable. After seeing his Jewish friend in the parallel world and having panic attacks over it, he just immediately puts in motion Holocaust 2.0? His second even told him how to take back America and stop being Nazis, and he said "Nah."

And are all of that worlds dead coming back through that portal? They are in a small cave in the middle of nowhere in the dead of winter. Introduce a steady stream of millions of people with no way to feed, house, or move them, and all you're gonna get is a bunch of dead people.