Please throw out autofill

Hi, This is an ongoing problem for me. since yesterday (wed. 8-2-2017), i've wanted to play warwick jungle you know, just for a single game to see what it's like. but seriously, i cant go into a game where i play the role i want. I always choose jungle and mid and whenever i actually get the jungle role, someone who was assigned support leaves the game, because he doesn't feel like playing support. at first, i thought that kind of behaviour was rude and childish but now I get it. I play league to enjoy myself and how do I play league to enjoy myself the most? By playing the roles I want. Then today, i got into 3 champ select. the 1st, i was assigned jungle (nice, i like that) but the support left (guess why?). the 2nd game, i was assigned adc (kind of odd, since i didn't wish adc and thats a role thats quite popular), guess what, the support left again (not the same guy). the 3rd time, and this is where it gets really frustrating, I get assigned to be support, seriously! I know it's to "lower the que time" but i was looking for a single game to get into and play warwick, hence, i didn't really have the time, to sit and play a 35-45 minute game, in a role i dont like and champions I close to never play. I would rather 5-6 minutes for a game, where i get to play the role i want, rather tan waiting 3 minutes for a lobby (not a game, since someone is always leaving due to autofill) and then get assigned support and therefor having to wait 35-45 until the game end, to get into a new lobby. you see how your system doesn't work? sincerely, everyone who isn't support main