I don't think I can keep playing anymore, the community is ruining this game for me

I'm so sick and tired of this community. It's not the verbal stuff I really care about even. Sure, it sucks, it's whatever, but it can be muted and ignored. No, what i'm tired of is people who flame, then troll their teammates, intentionally setting them behind, but never get punished. I'm tired of people giving up after their first death. I'm tired of people soft inting because another lane did poorly and a team doesn't want to surrender. I'm tired of people not getting everything they want(EG a mid laner demanding every blue from my jungler) so they rage split the entire game. I'm tired of asking my teammates VERY POLITELY IN THE NICEST POSSIBLE FRAMING OUT THERE to group or let the top laner with tp clear side waves with baron up and getting death threats. I'm tired of playing with people using the worst slurs out there and not getting punished for it because they cheat the system.

I can't do this. I figured maybe it was only in ranked so i'd try normal games, but no, it's not.... normal games are even worse. At the very least i'm taking a break from this game. I try to be the nicest person I can be but lately it feels like every game has a genuinely terrible person on my team who only cares about themselves, and will be willing to make the rest of their team suffer if they don't get their way.