Make Tanks more enjoyable!

Hello everyone! I'v been thinking about posting this ages ago but i was hoping for some patches coming up and new champions but it doesn't seem like so if you rioters read this might have more chance to happen. So i'm disappointed about tanks some tanks are so weak and some tanks are so strong (figters with tank build) but i don't want to really talk about that. i want to talk about tank designs. I play this game since sesson 2 and i'm just disappointed seeing champions coming out with high skill level unmasterable (zed,yasuo...) and there is litteraly every role except tank. i just want you to take a look at other game type of tanks like overwatch and world of warcraft tank calsses. i know they aren't moba and you don't really like blizzard but you guys litteraly said that you want to make tanks more enjoyable like 2 years ago but nothing really happened in my personal view. so riot games i want you to make a great tank champion or rework one that is hard to master like (lee sin, zed , azir , vayne , thresh , riven...) litteraly every role has one except from tanks and this is a big oof from a tank main. The hardest tank that i found was zac and i think it's probably around the 30th hardest one to master. Also your player base would be much larger if there wasn't one tank who always goes in and knock up everyone while he is bored and others having fun while playing yasuo and this is from a tank main view and i'm not against to nerf tanks or buff them just to make them more fun to play. sorry if i said something rudely i didn't wanted to. Someone who plays the game understands it more likely.