Men benefit more from marriage NOW. Historically it benefited both since women needed a man to do the heavy lifting on the farm and protect the homestead. Ladies couldn't really go out and be soldiers in the King's army or make money through other means.
Plus without DNA tests, men could easily deny their alleged offspring so women had to be very careful about who they had sex with and at least make sure there was a stable man around to help support her. Of course men could easily get cucked and be raising another man's children....which is why societies were much tougher on female sexuality. Mommas baby, daddy's maybe.
Nowadays? Women can find the sexual satisfaction they need from Rent-A-Dikk aka Tinder, Tik Tok etc. without worrying about pregnancy as much. That frees them up to engage with men when they have needs and then focus on themselves, family and friends the rest of the time.
Lots of women want to get married to men that ADD something to their lives. If she has to do more housework, makes more money etc., it ain't gonna fly.
Of course this depends on the woman too. My wife and I split the cleaning, she does most of the cooking because she loves to cook and I take care of the car and get shyt fixed. We both work and split up the bills.
Basically...........women can have their needs met more easily living alone than men can. A top shelf dude has advantages over every other man AND woman but average women can get what they want more easily than average men.
If dudes had the ability to pull dimes with little effort and could have sex on demand for free....there'd be a lot more brehs living like Leo DiCaprio.