Damage is fine
But all the lethality,% Mr and armor pen, and conquer is why damage feels so high its like good I got an mr item still 1 shot cause I still have effectively no MR . One of the most broken things in league was when Black clever stacked it was not the raw damage it was the fact you had no armor that made it broken.
Now lets get to the issues and how they started first tanks feel too strong so we add more pen to the game nerf tank items this is where it begins now cause of the pen buffs and tank item nerfs squishies have 0 options to deal with burst but now tanks are weak now what do we do we buff there kits but then there kinda strong again so now we buff pen items, % pen in champion kits and runes added conquer now this is where matters just get much worse so now we have nerfed mr and armor items all around buffed pen items and pen in champion kits . I feel if you want to fix damage you got to make mr and armor do something damage is the same as it has always been its the fact armor and MR are effectively useless now .
. But AP champions are much more rarely played compared to AD champions so building MR might seem worthless when the enemy team has only one AP champion(or none).