Talk to any male marxist and they will tell you that the way they experience oppression under capitalism is different than the way women do. Of course, there are differences between experienced oppression of say, for example, different minorities, but some of the common/shared ways that men experience oppression include things like mental health outcomes and incredible social isolation. These are factors that are contributory to the fascist pipeline.

So obviously, patriarchy doesn’t advantage men so much as it advantages wealthy men, or maybe perhaps it’s better to say it advantages well-off men. But for minorities, poorer men, neurodivergent men, or trans, it’s still a hell hole as they contend with a society that treats them as disposable, and failures for being unable to provide. This shuts them off from forming meaningful relationships and social opportunities. So it advantanges certain men, and disadvantages the rest.

I think being aware of that is very important and can help win over men to the cause of Marxism, and provide common ground with women and a personal cause for men to improve their material conditions, which is insanely important.

That being said I do think looking at countries that have won their revolution, that simply reclaiming the means of production does outright improve the material conditions of men by default by improving health care, better career opportunities, and lowering income inequality. Men (particularly white men in america) are already advantaged generally under capitalism and so therefore there will be some inequality inevitable during a socialist period of government (this is consistent with what Marx says about inequalities being inevitable as capitalist infrastructure remains during transition).

So I think my answer is similar to what some other people have said already - that the base form of Marxism/socialism does much already to help men. But yeah, at some level we do need to explore ways of bringing men into the fold by exposing how patriarchy works against men, and showing how socialism benefits men. I think it’s become a bit taboo discuss this stuff and that’s probably simply because of the efforts by the ruling class to divide us, using rainbow capitalism and the alt right as ways to smear any real dialogue.