Look, this isn’t my first rodeo. I know how comics work. He’s a Skrull, or a triple agent, or these are implanted memories, or it’s a time travel switcheroo, or, or, or. There’s a thousand ways Marvel can undo this reveal—and they will, of course, because they’re not about to just throw away a multi-billion dollar piece of IP. Steve Rogers is not going to stay Hydra any more than Superman stayed dead.
But Nazis (yes, yes, I know 616 Hydra doesn’t have the same 1:1 relationship with Nazism that MCU Hydra does) are not a wacky pretend bad guy, something I think geek media and pop culture too often forgets. They were a very real threat that existed in living memory. They are the reason I can’t go back to the villages my great-grandparents are from, because those communities were murdered. They are the reason I find my family name on Holocaust memorials. They are the perpetrators of unspeakable, uncountable, very real atrocities.