Too many shields

I think something needs to be done about the sheer amount of shields in the game. With the decent popularity of and and the current support itemization: (I know that some of these are not built together but still), these items and windspeakers have become very frustrating to play against. I get that carries need something to protect them from assassins but at the same time the amount of shields is creating an uninteractive playstyle. Sure Riot releases some fancy re-tuning of the assassins in order to give them more counterplay but then releases a bunch of new items that counter them even more. So assassins lose more upfront burst and their targets have more effective hp through shields so it makes the assassins job harder than it should be. Something that I think should be done is either create a grievous wounds style item for shields that works like executioners calling, say reduce the effect of shields by x% for x seconds, or reduce the effectiveness of stacking shields, something like or does with multiple uses.