AD too Stronk!

I have a problem with ad champs this season. when i go full hp and armor tank, i still get rekt by ad teams.. even with thornmail. I think Riot needs to find a way to fix. i had a few things in mind such as; lowering the armor pen amount, increasing the amount of ad blocked with armor (no need to go over 300 because the percent you are blocking, roughly 70%, will only increase by a small amount), Lord Dominik's Regards is too op. i get that its made to help ad rekt tanks. but if their whole team is ad, and im the tank. im gonna build hp and armor. im not even building damage, and yet i still get rekt. this kalista killed me when i had 3.5+k hp and 300 armor in 1.28 sec. or so the kill details said.