Damage taken is starting to really starting to become too much
Just over the years the changes to penetration, new champions with more and more complex and damage potential in kits, and the nerf to ALL tank items have made this game almost turn into a "well you hit me first so you win" type of game. Now I understand how frustrating it can be to not be able to damage your opponent, but with so many champions having high damage in their kits allowing you to essentially 1 shot all but the most tanky champions, it's starting to turn anti-fun mechanics.
In addition the all the crazy damage champions have now and what items allow, most, if not all newer champions have INSANE chasing and CC mechanics which add to the problem. If you do manage to survive burst most of these champions now have such high hypermobility or CC that you cant do anything anyway.
All im saying really is that tank items need to be buffed more and tank champions need some love, because dps has been running this game for awhile now.