Why has no one explained why you're wrong?
Because it should be obvious to anyone capable of reading and understanding a sentence without adding something between the lines that isn’t there!
You’re claiming, "He compared gays to Nazis," which is factually incorrect. He said Nazis and others were worse, and his family made it through those.. Why should he now give in to these threats.
What you are doing is textbook definition of building a strawman.
What he said:
Or to rephrase the obvious:
"His grandparents, his parents, and he himself had to deal with far more terrible and powerful people in the past, and they overcame those. Why would he now give in to child play threats from keyboard warriors, compared to the struggles he and his family endured back then?"
If anything he compared those, who where targeting him with "spoiled brats," not 'nazis' - wich seems to be accurate.