@Smileyguy
"No, Endeavor tried to do the best by his children"
Selective Breeding = trying his best as a Dad ? ? ?
"before Shoto came into the picture, he tried to make Touya a someone more powerful than All Mightbut never forced him to do anything"
as in, push his ambitions into his children against their will until he realized they couldn't make it.
"he clearly stopped when he realized his son's quirk was going to him killed/harmed and tried to talk some sense into his son (failing because Touya was clearly unstable by that point)"
after mind-breaking him (Touya) into that toxic ambition of his (Endeavor), such responsability . . .
"hell, even Rei admits in this chapter that she was not much better parent than Endeavor."
She was complacent, didn't try to stop him (both Touya and Endeavor) in the slightest, just accepted being a cattle made to breed and was happy as long as there was food
"Endeavor was a bad dad? Yes, of course"
Bad Dad, Bad Human, Bad HERO! Differences between him and that doctor on All for One's Side making Noumus? He lacked the tools the Doctor had.
"Does Endeavor deserve to die at the hands of genocidal maniac? Lol, no"
Does Endeavor deserve to die at the hands of his son, who he broke physically and physiologically due to his (Endeavor) treatment during his (Touya) childhood? YES!
He married with his ambition in mind.
Breed with his ambition in mind.
Broke one of his children to the point he
died (but he survived and turned into a maniac in the process).
Scarred his own spouse of her own children in the process (but she's better now due to
plot).
Had the "perfect quirk he was looking for" child and forced even harder his own ambitions on him.
Forget all about the rest of his family while he was playing with his new toy (Shouto).
The moment it came to public he lost his face as a Hero, Selective Breeding his own children to fulfill a challenge he couldn't met
and neither needed to.
You can blame Touya alone for all the killing of innocents, he IS a Villain, but the responsibility of creating THAT Villain is from Endeavor and his spouse.
If Touya's hands are drenched in blood, Endeavor entire body is drenched of the same.
He's no Hero, He's no Human, He's no Dad.
He's an Ambition Driven Monster with no regards to anything that don't affect his image as a Hero.
That's basically the description of your generic Villain.