I am so sick of having to play the role of babysitter in ranked

Half my time in ranked now a days isn't even spent trying to play the game. Rather I'm almost always having to try and calm teamates down because they have the personality of a little child. People arguing and going at each others throats over the smallest issues such as "I called X role and didn't get it", GG FB surrender, failed ganks, failure to ward specific parts of the map, didn't get second blue, etc.

I am sick to death of having to play the role of mediator between spoiled brats who can't help but throw a hissy fit the moment something doesn't go their way. Half the time im thinking to myself how its possible they didn't get banned in the tribunal yet. Ranked honestly even about skill at this point...its about getting lucky with your teamates. Ive won constant games with teamates who are bad but dont fight amongst eachother and lost plenty of games because our carries are a toxic cesspool of teenage angst and entitlement.

Can we tighten the restrictions on ranked already? I play ranked because I want to test my strength against the best this game has to offer. I don't want to spend half the game convincing my teamates to stop arguing amongst eachother for a split second so we can get back in the game

Hell at this point i would settle for an age restriction in ranked. It wouldnt fix all the issues but it would atleast prevent me from getting whiny teenagers who cant handle not getting their role without going into a rage induced coma