To begin with, if I understand your meaning, I'm going to need to clarify something at the outset. I guarantee you there absolutely are cultural issues that adversely affect men. In my work on healthy masculinity, I state unequivocally that Man Box culture is quite literally causing men to die sooner than we otherwise would through dominance-based masculine cultural conditioning that results in deep lifelong loneliness and disconnnection. Advocating against the absence of self-reflection isn't artificially creating a dichotomy. You brought that interpretation.

Is that because you need to interpret me POV as believing there is not systemic cultural harm being done to men? The reason I warn against externalizing men's issues (blaming others) by avoiding self reflection is because we must self reflect in order to integrate how we address cultural threats to men's well being alongside the processing of our own internal trauma, bias and toxic cultural conditioning. Without self reflection and addressing our own trauma, we're sunk because we're not owning our own part of the equation and we ALWAYS have a part, me included.

As for your doubts about how pervasive Man Box culture is, there's ample research confirming how wide spread it is. Equimundo's report literally titled The Man Box available here: https://www.equimundo.org/resources/man-box-study-young-man-us-uk-mexico/

That said, in my experience, men who say they didn't notice the Man Box in their own lives, typically just aligned more comfortably with it's rules.