Matchmaking and the way things are need a change [Big Rant}

I've played almost 1100 ranked games this season, last season I flew up from low gold and ended Plat 4, a few weeks ago, I almost hit Diamond 5, I am now back in Plat 4.

Whenever I have a bad game, people call me trash for having so many games played in Platinum, and usually it's the person that is actually the cause of me losing that game. I can't say that I am perfect, nor can I say that I should be placed in challenger or masters, but do i think I should be in Diamond 2-3 right now? Yeah, I do. Most of my losses are because of other peoples mistakes, I do make a lot of mistakes myself, but are they game losers? 90% of the time they aren't. Riot purposely does this.

This 50% W/L thing is getting out of hand, if I have an 8 game win streak, you better believe for some reason I'll have an 8 game loss streak. I won my way up to P1 50 LP, had Diamond 4 MMR and was carrying in this games, where am I now? Plat 4, and hit Plat 5 for a short period of time, yes, part of it is tilt, but did my knowledge and skill level go down? No, what happened was that Riot algorithms saw that I was deviating from the needed 50% win rate for each player, so what does matchmaking do? They don't pair you with people that are lower in rank, they pair you with people that are more likely to lose, OR are on a losing streak.

It isn't even that my opponents get harder, my teammates are the ones that get harder to carry. It shouldn't be like that. If I played 1100 games of Overwatch, or Hearthstone, I'd probably be Diamond level comparison in there rankings, and 1100 games this season, isn't counting the amount of games played in my earlier seasons. If I combine those games, and play that many games of Overwatch, or Hearthstone, I'd probably naturally rank up to Challenger level from game knowledge and mechanic knowledge.

Why can't we go back to strictly an MMR system? Why do you intentionally make climbing the ladder harder? Why do you push us toward a 50% W/L? Why must I play so many more games than I need to, to get to the rank/MMR I should be playing at?

Don't give me this BS about, "If you've played that many games, that's where you belong." I don't belong here, the proof is in that I had Diamond 4 MMR a month ago, and I was carrying games at that level, but somehow it's 100% my fault that I'm sitting in P4 with terrible MMR, now. Granted, part of it is tilt, but under no circumstance should a person be able to do that in this system.

I'm just so irritated with the way matchmaking is now, it needs to be redone and be an honest system.