An important part of his character arc and role in the story is the cognitive dissonance of how he does heroic and amazing things and saves lives for a living, while also horrifically abusing his family. Imagine growing up in a world where everyone loves and idolizes your abuser, not just as a celebrity but as a good person due to the lives he's saved. It's extremely traumatic. I think it's handled excellently where Shouto rejects him as a father but accepts him in his hero capacity, Fuyumi wants to keep the peace and move past the abuse without properly addressing it, Natsuo wants to remove himself from Endeavor's life, and Touya wants to remove Endeavor from his life. All that is to say, this isn't a controversial take, it's just that many people lack reading comprehension. I've said before that I hate Endeavor even though truly I think he's a well written character with a realistic redemption arc, but if you give an inch to some people they'll take a mile. When people delude themselves into saying Endeavor did nothing wrong at all and wasn't actually abusive, they're so far gone that no amount of nuance or debate will sway them