Can we talk about autofill?

So, I know you're expecting the basic, "UGH I HATE SUPPORTING!". Well, my real issue is why is it that in 90% of my games SOMEONE is filled. I mean I understand that autofill isn't too bad and that everyone needs to learn every role, but I can't do anything about it when I get queueud with someone who has no idea how to play support. Honestly this needs to be fixed.