These are generally people who can't stand social change and progress because it makes them feel disempowered and disinherited, like they're entitled to be the undisputed rulers of all they survey, but because of "diversity," i.e. historically marginalized peoples and groups no longer letting themselves be confined to the background and be treated as wallpaper, they feel like they're the ones being screwed over, never mind that's the same feeling they thoughtlessly and carelessly inflicted for generations on the same marginalized peoples and groups they decry now.