My take on feminism is that it just means equal rights and equal treatment, so fuck yeah I'm a feminist.
I once had a physical therapist tell me she wasn't a feminist because she thought women couldn't be as physically capable as men when serving as soldiers
That argument has always seemed like a cop-out to me. The division there is with physical ability, not gender. Establish the physical requirements and call it a day. There are weak-ass men who have no business getting near fields like that; and strong-ass women who blow the physical requirements out of the water.
Overall, men will pull ahead in jobs that emphasize physical labor - that's fine. The flip side is also true, with other jobs favoring the anatomy and physiology of women. Aviation comes to mind. Especially if we're still in the context of military, size and weight both need to be LOW. So same spiel - establish the requirements as the job demands and call it a day; weight and size limits will tend to favor women.
In either case, marking it as men-only or women-only is fucking stupid; but the demands of a specific career field leaning into anatomical and psychologic advantages of one sex vs the other is fine so long as the numbers reflect the actual demands.
*This does come with the need for and oversight, though, as the potential for abusing a system like that is high in order to accomplish sexist goals.
There's something to be said for the mental side as well. Speaking as a surgical tech, the best techs I've worked with have consistently been women. I couldn't begin to tell you why, and I'm backing this on the tiny field of view I've had into this field, but anecdotally, women are just better. I get a similar impression looking to the nurses and doctors, but I don't have the expertise to really judge either of those.
Tldr, utilize people's strengths, but don't be a sexist asshole about it.