My understanding of the meaning of the word "incel" is someone who is involuntarily celibate. I learned this from a black guy who said he was an incel at one point. I just searched the term and I see that it also refers to a racist and misogynist online group, which uses that name. I was not aware of this online group, so obviously I was referring to the former definition (involuntarily celibate), not the online racist group.
@fi
(Note: I see that another user is posting to this thread but I can't see their posts because I have them blocked.)