So now diversity means the less you have in common? lol. OK.

C'mon, there's limits.
A marriage works well when both partners strengths lie in separate areas, but not if they are strong in the same areas, but with conflicts.
Which situation is more diverse?
Neither.
One has a diversity that adds to the situation, the other has diversity that subtracts from the situation.

Elon Musk with a hundred other Elon Musks as employees would not be as successful as Elon Musk with a hundred qualified employees with different skills, which would be better still than Elon Musk with 100 different species of animal.

C'mon, guysh. Just... C'mon.