It's perfectly fine to have physical fitness requirements for certain jobs. It's also perfectly fine to acknowledge that women could be less likely to meet those requirements. There's an issue about whether those fitness requirements are really necessary requirements, or just rough weeding out hurdles designed with male fitness abilities in mind, but that there could be fitness requirements which might disadvantage lower-on-average-upper-body-strength women isn't really in question.
But, yes, women can work out and get strong and do necessary things. This is obvious.
