People want to be unique. They want to be individual. They want to make their time on this earth mean something.
In ages past this more often than not meant meriting that. By achievement or having family or serving others or whatever. Something honorable and noble.
Those are things our culture frowns upon and discourages and has been doing for quite awhile. So now people try to be "unique" in absolutely horrific ways. They cover themselves with tattoos. They try to excel at women's sports when they are obviously male. They claim to be cats. They claim they're "transgender".
And you'd better respect them. Because to laugh at them is to disparage their very reason to live. Their "identity" is all that they have now. They can't stand out because of something noble. They have to be freaks instead.
People want to be unique. They want to be individual. They want to make their time on this earth mean something.
They all want attention, so they do what they can to get it.