I never served with women at sea when I served. One problem that was starting to occur was women taking over shore berths once occupied by males who had served in a ship on an overseas station back in the day when such a posting meant a year away from family. 6 weeks leave per annum is not enough for a married male continuously at sea.
As for women in combat. It depends on their role. Combat aircraft and a modern warships come to mind. I’m definitely in agreement with you on the lack of suitability for infantry but history is replete with examples of women showing resilience and courage in the worst of circumstances.