Riot, your Ranked System is Broken

Ranking a player by putting them in teams of other like ranked players sounds like a good idea. Sure, it is if the rank actually was accurate to the player skill, not the team the player is stuck with.
Riot has created this individual 'success' rating, S, A, B, C, etc. So, if Riot, in all its wisdom, thinks that they can tell us, 'hey, you did great, S+', but then take 20+ LP from us because our team sucked the chrome off of a trailer hitch, why can't Riot figure out how to use that 'knowledge' they gain from our individual play and adjust the LP lost or gained by our actually playing statistics. If I am on a winning team, but have horrible statistics and get a C rating, then give me less LP than the guy that rocked the 15 2 25 score. And if I get an S+ on a losing team, take a few LP, sure. I mean, after all, you lost, but don't drop him a whopping 20+ LP and beat him over the head for playing well.

Playing solo and duo queues should not be so discouraging and frankly I believe partly why the solo duo queues are so toxic is because of the unfair ranking system. I know many players who refuse to even rank play as a result of how toxic the ranked queues are.

The games supposed to be fun, but this ranking system is broken and the toxic players are taking the fun out of the game.