Even if that's true, at the end of the day it's going to come down to biological differences. Men are overall, stronger than women, so when you find the best person for the job, you'll most likely end up hiring a bulky man. Same with firefighting where they need to carry heavy equipment and be able to perform their duties safely. So short of hiring women body builders, you're most likely going to end up with a man.
Why don't these "equal outcome" groups make a fuss about that? What about trying to get more men into nursing or day care?