Well except that there are. I mean anyone can make up labels for things. Doesn’t mean anything to society at large. Especially when there are already wide spread terms covering essentially the same thing.

Here watch this I’m going to make up some generation labels

1979-1984 - Insufferable Whiners
1985-1991 - Weird (just weird, just one name like Bono or Cher)
1992-1998 - Dumb Dipshits
1999-2000 - y2k Buggers
2001-2007 - Ignorant Imbeciles
2008-2015 - Magical Thinkers


See making labels is easy

But ultimately meaningless unless everyone agrees to use them