Has Another Player’s PC “ruined” the Tone of a Game for you?

[noob]

Forgotten realms is so high magic that there should be a new term for speaking of the excess of magic.
The cosmology involves ao throwing dice to guess the next evil thing they will do and somehow they still keep their true neutral alignment.
If you do not follow an awful person you are punished to suffer in a wall forever.
Mary sues go around and makes 40 cross-overs per second.
There is literally all the settings within forgotten realms provided you are willing to do some dimensional travelling.
You can go to an earth that is a copy of the call of chtulu earth then punch chtulu and win.(like just why?????)
You can not cast spells above level 10 except you can but only if you are a mary sue and that is either "elven high magic"(if you are a mary sue that mary sues) or "epic spellcasting" or "weaveless tapping primal magic".