Top lane keeps feeding

I have this terrible feeling I'm becoming slowly more and more toxic. Every single game I go each and every single time. My top lane will feed. Now hold on it's not what you think. It's more of 60% of my top laners feed but there's my toxicity building in the first paragraph.

It will start in lobby all 6 bans are good and he wants to do garen in ranked, we ask nicely please play someone with more cc for us. An actual response "F**k you." Okay so maybe he'll afk or dodge I can 4v5 or wait for a new team. We get into game and he dies to fiora for first blood, now it wasnt a troll death he tried to fight her ended up taking 2 tower shots because she baited him. TBH I think her W is retarded but he died. We told him "Please play safe shyv will gank after lv 4" The response he had is unknown to me since I muted him 1 milisecond in the game. But my team just sighed as he started feeding her intentionally. Long story cut short. I can't carry is top feeds and he went 2/15. Now I have to sacrifice the only role I truly love which is JG and go main top lane. I really love league, while there are characters who annoy me I love this game the community is terrible but when I have 4 friends in ranked it's the best time, only when we get that 1 trolling top laner every 6/10 games making it very difficult to climb.

After the game we looked up the garen and he frequently does this. A huge portion of his games are him feeding and being either carried or losing, idk how he's allowed in ranked this seems very unfair.

tl;dr anyone know a good top lane champ to play? leaning towards jayce