Is the redpill / manosphere a knee-jerk reaction of men realizing women are people (with flaws and past) and not the idealized person in their heads?

I just watched 500 days of summer and it helped me mature my understanding of relationship and the complexities involveds in dating someone. But it also sparked in me an insight about what may go inside the heads of men who grow up romanticizing relationships and idealizing the women / girls they had a crush.

It would work as such. The guy would find a woman they are interested in, form an ideal version of this girl in his mind based on his backgroung, go talk to her and try to develop something, possibly escalate to a relationship and then start to learn that she is a person just like him with flaws and a past and them face a dilemma when confronted with reality. Instead of using this opportunity to mature his world view and challenges his views on women, he chooses to close himself on his ideal version of women and attack all the real women who, by definition, cannot attain his ideal.

So, in this case, the redpill / manosphere would function as a middle ground between he and feminism. A barrier to be confronted and challenged so that he can overcome his unhealth pre-conceptions over women and dating and fully grow up into an adult men.

So, in face of feminist understanding, is my insight correct? If not, what were the points I missed?

Thank you!