Tanks Are Broken

so I just played a game where I was aatrox top and the game was going great in our favor until kayn got his darken form he end up doing the most damage in the game but he was building tank and was unkillable due to his healing and tankness but the thing is I see this with most tanks right now they are unkillable while doing tons of damage and we have no way to kill them because you removed the anti tank items and nerfed the anti tanks even with aatroxs passive I couldn't kill him and with what you guys are doing to adcs I feel you either need to bring back lord doms effect on killing tanks or nerf there damage I don't care about how tanky there are but a tank should not out damage everyone in a game it's gotten to this point where if I see a super tank after banning the one I can I just leave because it's not fun to play against that especially if the tank is with his team because if we go for the non-tanks then we die to the tank but if we aim for the tank we die but he still lives I would love too hear back from you all for this is an issue my friends and I feel very strongly I make this complaint even though I myself mainly play tanks it is out of control.