Many - if not all - of the difficult modern sociological problems we face are rooted in the inability for people to accept that while our technological understanding is, frankly, unfathomable compared to 100,000 years ago, our biology, our neurobiology, etc., is all still running under the software that was developed hundreds of thousands of years ago.
Take our social norms around sleep, for instance. We call bad dreams “nightmares”, we set our business hours to 9-5, etc etc. All of this is social, but clearly there is a biological link because we’re not inherently nocturnal animals.
IIRC the invention of agriculture caused a huge shift in cultural dynamics as regards sex and gender world wide, favoring men. It is not unreasonable to think that an age that lasted 10kyrs might have some lingering affects on how we view the world.
But most other norms are more complicated. So the idea of the man as a physically strong provider - it’s not universal but it’s extremely common across the world.
Cultures and societies are subject to the same kind of natural selection as individuals and species. Cultures that are self sustaining, defensible, and expansionary are the ones that win out in the end.
It's the automation of force that will drive change to how we view maleness. The increasing reality is that strong, aggressive males aren't nearly as necessary in the battlefield for the defense of societies. A 100lb woman can pilot a drone and drop bombs just as well as a 300lb linebacker of a male. Humanoid robots are rapidly entering the scene and will start to replace human soldiers and police officers as the ground units of power projection. eSports will start to overshadow the NFL as we start socially valuing individual human strength less and less in favor of tactical and strategic ability to control robots.
Societies have always used young males as disposable members who are thrown into the most dangerous and lethal jobs for the simple biological reality that wombs are scarce and sperm is not. If all of the lethal work gets automated away (a fantastic thing!) then that will be one of the most drastic changes to human social order that has ever happened.
You are making the same mistake as the clowns that cry how you “can’t use your AR15 to stop the government”.
Ignoring the reality of asymmetrical warfare, and failure of the strongest military or universe has ever seen failing to secure a state of uneducated farmers and merchants for the last 20 years…
If your goal is to glass something - sure the 100lb recruits in the drone program are your go-to. We leveled two parts of Japan and it ended things, then the math changed with mutually assured destruction.
But that isn’t how you actually take something over.
You take things by putting your people on street corners. Going door to door. Preventing undesirable assembly. Securing travel and trade.
Tanks and drones really suck at standing on the corner. The soldier isn’t as outdated as you suggest.