That doesn’t seem to be the intention here. The pronouns aren’t strange because “a gorillion genders”, but more to show that this is a narcistic arrogant rich person.

I see a lot of people make jokes with pronouns that aren’t the one joke, like identifying as a catastrophic failure. I don’t think that’s harmful.

Edit: this comment does assume the entire post is in fact not serious. If this person is serious, then it is almost certainly the one joke.