Remember. He didn't back down (for now) because you were hurting as a person.
He backed down because his constituents - the ultra-rich, aka the ones best equipped of all to weather this storm they themselves asked for - complained that their power and wealth rate was decelerating.
Simple as. The people who build and maintain societal infrastructure with their sweat and blood would sooner be left to die than these elitists would see their unfathomable and unneeded amounts of influence drop even 1%.
Europe accepts its sons and daughters of long ago. Specially the talented ones who contributed to empowering science in the US.
Not the Drumpf family, tho. Those can stay there instead of returning to their roots in Germany. The last thing we want is a "Make Germany Great Again" movement - they're already great right now, no need to fix what's not broken, thank you.