I think you're quite correct in this analysis as well. Historically, women have often had to depend on a husband for financial security and to be this instrument of protection. This archetype of the provider and protector husband is still baked into our patriarchal culture and leads women who don't deconstruct this attitude to treat their male partners as you describe, and men in straight marriages to feel this burden alone. I've seen it often lead to insecurity and self doubt among husbands who feel they can't live up to this impossible expectation, who also for the reasons widely discussed in this thread don't feel able to express this insecurity and doubt, or are punished for doing so because it goes against their culturally-prescribed gender role of the strong male protector.