Sure, there are differences. For men, no one ever expects those differences to limit what they can do. Men can be firefighters, loggers, hairdressers, florists, politicians, engineers, interior designers, party planners, chefs, teachers. There aren't many professions where people would question why a man was doing the job instead of a woman.

What the left and feminism wants is for the same consideration to be given to women. That despite gender differences, if a woman can do the job, then there are no second guesses or carping about gender. That she's allowed to just be, just like men are. That there's a recognition that while gender differences exist, men can do jobs once considered traditionally feminine, and can do them well. And that we can recognize women can do jobs once considered tradtionally masculine, and can do them well.