going full tank and still doing MORE damage than a carry

why is this allowed? Honestly, WHY is this cancer allowed to fucking spread in this game? for those that dont understand, building
is meant to mitigate as much damage from a carry as possible at the sacrifice of damage, EXCEPT you dont sacrifice damage... if you already have insane ratios or % HP damage you will ALWAYS ALWAYS ALWAYS do more damage to a carry than they can do to you. this is a fact.
why have you guys battled with this for so long? since the release of
this type of playstyle has been known to be pure cancer, yet its still allowed to spread in game every damn season, and only gets worse. yes worse. Bruiser
is a sleeper to this play style aswell.
I am a person that loves to build glass canon. its just my playstyle, but i am not rewarded for doing so despite the heavy risks involved in doing those kinds of builds. if i want to go full AP glass canon then i should ATLEAST be able to out damage someone that is going full tank, but that is far from the fucking case when someone like
can be tankier than a sion/malph and STILL 1 shot me. its so fucking stupid.
Can we please do something about this before it gets worse with the MYMU?
. And the fact that u dont know that means that u didnt face it and only reason for this thread is to complain about something
to do damage as a Tank. Full build would generally be something like