I wouldn’t say that. Girls who are more physically fit, within reason, tend to be better at the full range of femininity. They have a stronger frame, an orderly hormonal flow, have more and healthier children, and raise them better, because they are able.
To call this masculinization is unfair, because it is based on an incorrect notion of the range of female capability. It is like saying that women should not drive cars or use guns, because those are masculine activities.
Of course there are extremes as well. A female body builder can look grotesque, and a woman can be as gross and crude as a man. But for the most part, good health and intestinal fortitude make a better person, male or female.
Yes, well, you wouldn’t say that because you haven’t thought it through thoroughly. By the way, masculinizing women leads to them having fewer children, not more. This is one of the main reasons why Western peoples aren’t reproducing.
It’s also why women today are generally mixed-up feminists.
It isn’t about their being “physically fit.” It’s about their being masculinized, instilled with masculine ambitions and norms.
See through the spirit of the age.