Why is there no mininum criteria for ranked?

I get that everyone deserves to play or whatever, but it's just unreal how hard it is to get out of bronze with some of the kids in here. Got placed Bronze 1, have been to series like 7 separate times and each time I get kids that "don't care, they just want to have fun". And as cool as that is, that's what normals are for. I feel like there should be provisionals like always, then if you don't make the cut you just don't get to play ranked queues, then you can retry in a week or so. It's just insane how many trolls and genuinely unskilled players reside in these lower elos. It just seems bogus that the ranks are based off of team performance rather than my own performance then I get the joy of getting feeders and trolls 9/10 games. I can't see how a system like this could possibly hurt ranked queues and if anything it will make it a place where you can legitimately compete rather than get stuck with a team full of kids who treat it as if it were norms.