I just played as all solos against a trio premade and lost 5v4

Please. Dynamic queue and ranked overall is a joke. I played a pretty good game as Tahm support, but there was nothing I could do whatsoever since my god damn Varus went 2 and 12. Please tell me what I was supposed to do to win that game? What am I supposed to do. Of course I flamed him- when your are at Silver 5 0 Lp and u could get demoted to Bronze any game, you rejoice when there is a god damn 5v4. Then when you realize the game is all solo queues on your team matched against a premade trio (they all had the same club name and confirmed they were a trio) you start getting a bit salty. Then a god damn varus (I am actually pretty sure it was his first time with that champ, looking through his profile) goes 2 and 12, and ignores any helpful advice that me or my teammates give. Of course I cursed that idiot out. Then I get a 14 day ban. I just love this game, its really great. Every god damn game I play I get a KDA of around 3+. My kill participation is around 57% and I do everything I can, but this is just bullcrap. Please do something Riot.

PS: I do deserve that ban but let's be honest, I bet 95% of you would have flamed the crap out of that guy if you were me.