Is this a joke? (yet another matchmaking complaint)

All right. So, I queue in ranked. I say I'm willing to fill and that if people don't tell me what they'll play that they shouldn't complain if they're forced to play a position they don't like. Immediately, one of the people starts going "lol u suk kill urself" and the such. Muted right off the bat. He nearly troll picks, but eventually stops messing with us and settles on an AD carry when we need one. There's another guy who throws a tantrum because he wanted to jungle as Lee Sin and the champion got banned so he picked jungle TF.

Okay. That's fine. Shit happens. You get bronzes in upper silvers, it happens. So, I bite the bullet and play Thresh as well as I can. The Sivir just pretty much feeds herself to the enemy team while the TF doesn't even manage to outdamage me. We surrender at 20 and I somehow lose 18 LP. Fine. Fine. I get it. It's fine. I put the two trolls on ignore and move on.

I queue a few minutes later... I GET THESE TWO PEOPLE. AGAIN. ON MY TEAM. What the hell kind of matchmaking is this? These two are clearly trolling and the system is repeatedly matching me with them. And never mind that after I got a nice win streak this week-end, I started getting trolls and people who can't stay connected all the time. This is not how matchmaking should work. Punishing people for doing well is idiotic. Yes, if you do well, you should be getting queued against better people and so it should get harder but this is clearly not how the system works. Instead, it finds players who are clearly trolling and repeatedly disconnecting and puts you on their team to give you a handicap. Why anyone ever thought that was a good system is beyond me.

Please, PLEASE change this.