Look up the tragic tale of Elliot Rodger: Santa Barbara Incel, Serial Killer from 2014. That’s how he described himself, and proudly so.
I read his manifesto. He was detached from reality.
“Tragic”? He was a rank narcissist more than an “incel”. The sort that anybody would find repulsive.
One tidbit that came out about him was that his Facebook page was full of pictures of himself, his cars, his activities...and not a single friend.