I've known plenty of 
but when it comes to being scratched about it, it has to be my old neighbor that lived just down the road at the intersection, one of the first to buy (and performatively loop around the neighborhood with) a Te$la.
I had the misfortune of running into him at the bookstore, and he had this sort of eager "oh boy I'm going to blow your mind" look on his face as he saw me at the tables by the obligatory coffee shop inside.
"Isn't it insane what's happening out there?"
"What?"
"The looney left! They're out of control! I mean... you know it's bad when the most philanthropic human on the planet says they're out of control."
"Oh..."
"Yeah that's right! E~L~O~N has to take a stand or no one will! I don't want to be stuck living in a mud hut just so I don't hurt someone's feelings!"
"Oh it's your turn. She's trying to take your order."
My mom is a Jewish Russian-American, 3rd generation, granted, but she regularly brings up her Russian heritage in weird self-flagellation shows of devotion to the State Department. If anything reminds her that Putin exists, anything at all, she goes on long genocidal rants about how Russians are evil and there's something wrong with their brains - to prove she's not a hypocrite she then says she'd volunteer to be executed herself if that was the only way to get rid of all Russians.
I pointed out that she is - verbatim - repeating Nazi rhetoric about people they tried to exterminate, and my mother, who, again, is Jewish on top of ethnically Russian, starts going in circles about how no, PUTIN is the next Hitler, because Russians are evil, we're evil, oh my god we're so evil, what is WRONG with us?!
Rachel Maddow has turned my mother into a hysterical gibbon and I don't know how to fix it.
My mom has the same heritage, but her internalized shame isn't as bad as your mom's. I try to explain that the things she doesn't like are largely a consequence of capitalism being imposed on the former USSR, but it doesn't really stick.
Does she want to kill all Germans for the OG Hitler thing?
She oversubscribes to great man theory, to the point that she blames Hitler for the violence in 300 year old German fairy tales... There's no getting through to her on any of this. Besides being absolutely insane, she's actually quite nice.
D:
yeah...