What is hard (and it's made obvious by all the comments) is to put yourself in the shoes of someone who's a minority in their environment. I encourage all guys here to do something simple: go to a Women in <something> meetup (or Black engineers, anything where you'll be a minority). Chances are, you'll be one of very few guys/white people, and you might start thinking "do I really belong here?", and you'll feel a lot more self-conscious. Now imagine if it felt like that every time you went to classes/to your job - it's hard to imagine the consequences it could have after a few months or years.