LoL's community is cancer (vent post)

I just got out of a game in which I was brutally harassed by a three-person premade. Our mid laner, Cassiopeia (the only one besides me not in the premade) ended up something like 0/9/0, which I didn't even care about since she was the only player who wasn't being a toxic anus (I honored her after the game). Top lane Cho'Gath fed three kills to the enemy Warwick in the first five minutes, which drew flame from Cassiopeia. Cho'Gath then spent the next thirty seconds all-out raging at the Cassiopeia, and I kindly told him to shut up and play. This drew flame from the bot lane, which was premade with Cho'Gath.

Fast forward a couple of minutes, I gank top and secure the kill. I then start taxing minions so that the enemy Nasus would miss farm (I thought that's what you were supposed to do?) and Cho'Gath AFKed (he came back about three minutes later). I had to endure the rest of the match while being brutally harassed by Jinx and Karma, and we couldn't surrender because even though Cassiopeia and I voted yes, the trolling premade wanted to continue harassing me and voted no. I reported all three of them (Cho'Gath for AFK and intentionally feeding, Karma for verbal abuse, unsportsmanlike conduct, and intentional feeding, and Jinx for verbal abuse, unsportsmanlike conduct, and intentional feeding) but I'm worried nothing is going to happen. The only time I have witnessed someone actually getting punished is for using racial slurs. I have never seen anyone get punished for harassment.

I think this is kind of BS, because I play this game to have fun. I intentionally stay away from ranked because I feel it is too competitive, and I play this game just for fun. It really sucks that such a large portion of the community is dedicated to ruining others' experience. And like I said, I worry Riot won't do anything about these particular players.

TL:DR: Fuck this community.