The term incel meaning involuntary celibate originated in the 1990s from a woman Alana who created the Involuntary Celibacy Project where she wrote about her experiences not having sexual or romantic relationships. She envisioned a community that was inclusive to other people who were going through the same thing, but it got side tracked into the highly sexist, male dominated, group it is now. The main ideology of this group is based on the sexual marketplace. Everyone has a sexual market value based on many different attributes, physical, wealth, social class, etc. and the idea that the top 80% of women are looking to date the top 20% of men creating a huge disproportion in the amount of women that are left for the majority of men. Not only is this not based on accuracy, it also doesn't bring in the nuance of attraction. Sexual market value doesn't make sense on the greater aspect of dating because many people value different things. If you ask 100 people to rate what's most important to them, it will be a very vast opinion. But it does help for bonding to create this fake idea that all these women are against you, and that's why you're not having success with dating, rather than taking a look inward and seeing what other reasons there could be.