if masculinity is strong then why is it so fragile?

i’ve noticed this pattern of all these guys in the manoshere preaching how important and strong masculinity is but most men feel threatened and act like babies when when women do anything better than them especially within the confines of a relationship. for example if she is the provider (often times the case these days) he will act all threatened and toxic and try to cut her down or if a women displays any sign of strength somehow it makes him feel weak which is a true sign of weakness.

Why do men want submissive women but can’t handle dominant ones? kinda seems like insecurity more than anything else.

im just getting sick of all this alpha posturing shit instead of focusing on real mens issues like health,fatherhood and violence.