There’s a difference between someone who is an incel and someone who would like to, but can’t find someone to have sex with. It’s like how all squares are rectangles but not all rectangles are squares. Not all people who can’t find someone to have sex with are incels even if they are technically involuntarily celibate. There is a lot more that goes along with the incel community than JUST involuntary celibacy.

A shy or fat guy who can’t find someone to sleep with might not classify as an incel for example, but someone who thinks like your comment very much does.