There are a lot of angry men who resent their circumstances. When I hear their spiel about women or beta men I know I've encountered a problem. You can't reason with them. Most are time bombs waiting to blow.
~Bella
There could be all kinds of factors that play a role. Ultimately the person makes the decision, and is accountable. But that does little good after the fact, as many of them take themselves out as well as the people they are directing their anger towards.
What role does society have in helping those who are struggling with these issues? And if so, what part of society?
What role do family have?
What role do religious groups have?
Factors I have seen mentioned, either by others, or incels:
a. lack of social development, and IRL interactions.
b. coalescing of like-minded people, but with interactions that turn negative, such as forums where people are encouraged to build resentment rather than deal with it.
c. inappropriate content, hook up culture, anything that drives objectification or notions of entitlement. In particular tube-type video inappropriate content that allows for constant searching for virtual novel mates which can reinforce addictive behavior by stimulating a biological drive. Or in Biblical terms, a continual lust for more. It is associated in some studies with increased early onset impotence as well, which certainly won't help in real life hooking up if that is a goal.
d. Younger generations performing worse economically than their predecessors on the whole. Data in the USA at least indicates that folks are living with parents longer, performing poorly economically, etc. This may make dating more difficult, and may feed resentment as well.
e. Online dating or apps-Some men have always been more attractive either physically, personality-wise, financially, etc. However, if dating is less about in-person interactions, and more about selecting from a pool of options, sometimes through swiping based on cursory observations, this may work against those who are unattractive, whether physically or otherwise.
f. Hatred of women, hatred of successful men, hatred of couples.
g. Sense of entitlement
h. poor upbringing or guidance on how to treat those you are attracted to.
i. low impulse control generally (can correlate with IQ, but unknown exactly why)
j. "A few millimeters of bone" (beauty standards).
k. Response to toxic femininity, downplaying of men's needs
etc.
How many of those play a role, or what others do, I guess is part of the question.