People are in fact suffering for not having Fortnite skins:

https://www.thegamer.com/fortnite-default-insult-kids/

This might even be the point of having scarce skins, if we combine it with the causes for bullying:

https://www.ucdavis.edu/news/most-teen-bullying-occurs-among...

I can agree with limitations giving structure to our expression, but the consequences don't end there.

I don't know, Ive spent a bit of time around children. If they don't have a actual reason to bully other kids then they will invent a reason whole cloth. You would have a hard time convincing me that scarcity has anything at all to do with that. If fortnite skins didn't exist it would be freckles, or names, or head shape, or literally something made up. You're second link even says bullying is just climbing the social ladder, I don't think scarcity of being the popular one is solvable unless everyone lives in a personal world full of only ai. Alot of kids and teenagers are honestly just dicks.