Why would anybody feel like the lesser gender because of something they can't do?

I'm a feminist, I'm obviously going to side with my gender. I am not saying I think men are the inferior gender. I think we're equal. I don't think anybody is better than the other gender. <br><br><br>So I was scrolling through a video, it was a video about men vs. women, I don't know. I'm not gonna link it since I'm not the type to post links (sorry). <br><br><br>One of the things it said was that boys used to think it was a burden to be a man and have to protect a country from invasion. <br><br><br>Then I looked it up and it's true, men used to think that being a woman was better than being a man because we don't have to join the military - we've always been able to do anything a man can't do. (And a few things that men can't.) <br><br><br>Why do people care so much about this? Why do people feel like the lesser gender because of things they can't do? Why feel like the lesser gender at all?