I sincerely tried to give autofill a chance

But playing a few autofill support games was just the most boring waste of my time ever. Win or lose it's just not a fun thing to do. If I was high elo with 20+ minute queues then I'd understand but I'm saving maybe 2 mins just to waste 20-60 mins.

Your system is just forcing players like me to dodge everytime they are autofilled and I can't imagine that is making queues any healthier. But if that is the way you want the game Riot then so be it.