Originally Posted by
Gredival
The promise of incel ideology is that it appeals to a time where, by nature of their birth, men were destined and entitled to certain things. Even if you weren't a doctor or lawyer, with women being relegated to relatively slim career opportunities, you still had advantage in being a man. Now they feel that's gone because equality means that all the women chase Chads instead of settling for Groggle's agriarian utopia.
These same feelings of invaders coming in and taking away what they deserve is what fuels nerds of various persuasions to react poorly to female presence, representation, etc.
The anti-casual thing is related to the same resentment of being replaced.