Should i stop playing ranked?

I already got to plat and this is about the time i stop ranking because p5 is such a garbage elo. But like it got SO . MUCH . WORSE. I legit lose games because

1. someone dcs or ragequits
2. The enemy team is better via mmr difference
3. Someone decides to troll when they dont get babysat (Mostly top lane/ Jg tbh) The order of frequency is more 3.2.1 While i do concede there are in fact a lot of players better than me, i get trolls far too frequently. Like for example go look at my last game. With Kat. Camille did 5k damage in an over 20 minute game, it was 28:55 but basically a 30 minute game. 5k? Blitzcrank did double her damage at the end game... Like????? I even helped her lane. I was winning my lane so i helped hers, and helped the jungle when he got invaded on. Ranking seems pointless if i cant win because someone doesn't want to win.