The whole problem is D&D itself isn't honest.
The base assumption of the D&D fighter is a
Christmas Tree.
Your 11th level fighter is an above average humanoid with national recognized combat ability and is supposed to have:
- A magic melee weapon
- A backup magic melee weapon or a magic shield
- A magic ranged weapon
- A set of magic armor or an uncommon noncombat magic item
- A common noncombat magic item
- A bandolier of potions
The game doesn't outright say this. The community doesn't out right say this. But this is the assumption. 5e D&D attempts to be cute by saying "you don't need magic items" but it assumes if you don't use magic items, the DM doesn't use 75% of the monsters in the book over CR 9. Again, it is info not outright said. 5e lowered the "requirement" of magic items but
the Christmas Tree Fighter is the assumption for mid and high level play.
However the Christmas Tree Fighter has Pro and Against factions. This is because different mediums of entertainment in the fantasy genre use Christmas Tree Fighters or don't. Anime typically doesn't. Novels typically do. Comics doesn't with a few noteable exceptions.. Older Cartoons do. New Cartoons is a mixed bag. Movies follow the source. Mythology does and doesn't at the same time. Wrestling doesn't.
This cases a debate based on the type of media you might prefer (and how old you are).
So the Options are
- Accept the Christmas Tree Fighter
- Stop play before the Christmas Tree Fighter is turned on
- Create Christmas Tree and Innate versions of the Fighter
- Create a new class that doesn't rely on the Christmas Tree effect
- Something else