Muscular endurance is different from cardio endurance and literally doesn't apply here

You really are retarded.

Muscular endurance is about sustained and repeated contractions which doesn't actually happen much in a fight

Happens quite often in a fight along with cardio.

You're actually retarded if you think a boxing match requires a lot of muscle endurance

It does require muscular endurance. Do you even know what the fuck you are typing?

I used to do kick boxing before the quarantine and you become gassed far before your muscles start giving out.

Oh wow, you took a few classes of kickboxing. You must be the new Ernest Hoost. LMAO