Don't forget how current pop culture within media distorts reality into some weird perception on how a "true man" must act, a lot of shit from the incel crowd is merely just the gestated fulfillment of ironically nerdy directors creating movie/show genres in which (smart/nerd = undesirable/disgusting and that only the physically fit and trim are to be desired) or that said "nerd/geek/etc" must be domineering in their attitude to get what they want (i.e. the red pill multiple plates shit). There's a reason lots of "main characters" in media act demeaning or abusive towards others such as modern Sherlock Holmes being an asshat. This all is done to obfuscate the fact that dating and getting to know people is just talking to fellow human beings and seeing if you click or enjoy each others company. If such encounters don't immediately lead to sexual dominance or relational ownership means failure on the part of the male in "capturing" the attention of the woman. This then leads to incels finding a coping ideology to explain this "failure" (i.e. I am a genetic dead or end or other "black pill" shit which eventually culminates in a shooting that ends with innocents killed/harmed and the shooter getting suicide by self or cop).

tldr: Incels are the thanaton drive byproduct of a male dominated society that has created a clusterfuck when it comes to dating by designing a fictitious fantasy that only particular men are entitled to relationships and that intimacy via sex is the ultimate "reward" of said relationships.