This is not sensitive coming from you, and you clearly lack perspective.
The lingo used is completely irrelevant. It can be Incel lingo, educated lingo, whatever the f*** you want, even if you want to speak chinese. The thing here is the meaning behind what it's said... I see a guy wanting to feel good about himself AND have success dating. What is there about it for you to call him mentally ill? If you are on this forum I can already tell that you belong to this same group of people. And I do too.
As I've mentioned before, there are way too many wrong assumptions being done. And that's okay it's not anyone's fault. But I am willing to explain whatever is needed even though I don't consider incel myself.