See, as far as I know you made that up on the spot just now: None of that has been hinted at through your dialogue. All that's stated in your bio is that he raised himself as a feral child in the wilds, nothing about growing up among demons. Considering the only demon of your kind we've heard of is one that kidnapped and raped a woman until she had his child, whereupon she died and he abandoned it there's nothing to suggest that those hunters were not, in fact, justified. Oh yeah, they get vilified for killing humans. How odd that humans don't like them then. Whats a few murders and kidnap-rapes between friends?
How where you hunted and shunned during your youth anyway? Your bio says you raised yourself with barely any contact with intelligent beings. Hunters aren't psychic: they won't go into woods on the off chance a half-demon child might be living in them. You can't blame us for not knowing things you never said anywhere. All this stuff you could show through RP, but you didn't even have it in your bio. Your character is 23. At most he's been persecuted for 6 years, rather than twenty, as that was when he chose to rejoin society. And if it made him so miserable, why not go back to living in the woods, away from humanity?
You may feel like I'm just having a go at you, but to me your character seems nonsensical and inconsistent, so it grates on me.