I'm getting real tired of being the only tank on my team
Seriously, is it that hard to just pick a god damn tank? Maybe you would be less salty about getting nuked by the Zed if you would pick something other than an assassin, mage, or marksman. I can't build just one type of defense anymore because there is no one else on my team who can fill in as the Magic Resist or Armor tank. Even if you don't want to pick a tank, at least pick a tanky bruiser like Garen or Nasus.
It would be nice to see more comps like this:

And better yet this:

I don't actually mean pick these specific champs, I just mean make more comps with more than one tank in them.
Please. Do this for the Tank Mains. 1 frontline can't defend 4 other players. 2 frontlines can, and 3 can absolutely defend your squishies.