I feel like guessing how good a movie is gonna be off of one casting choice is like guessing how good a college team will be off the strength of one big recruit. Seen so many people say shyt before they even saw the movie and get it all completely wrong. You have no idea how they're going to fit into the system and work with that particular role and director until you actually see the product for yourself.
They can have him be any variant they want, travel in time and space from wherever they want, but he had to appear the same age in every appearance? It actually is a lot weirder for the variants to be the same age than for them to be wildly different from each other.
You're misunderstanding the point.
If Kang was meant to be an old breh they would have got an older actor in the first place.
Instead they specifically went after a younger upcoming actor as that is what they hand in mind for the character.
You can't go from giving the role to a 30 year old upcoming actor to then some breh nearing 60 on some gatekeeping shyt
It needs to go to a younger and upcoming black actor.