That’s not what I’m saying. You don’t have to be a woman working in tech to criticize bad examples of sexism. You just can’t pretend that you know better than a woman working in tech what constitutes sexism in that industry. You are not there. You cannot know what that is like. You are not an expert. They know more about this than you do.
So when a physicist talks about physics, I listen. When a climate scientist talks about climate change, I listen. When a developer talks about web design, I listen. When an urban farmer talks to me about the noise roosters make, I listen. Generally when smart people are talking to me about things that I don’t know about, I listen. That includes sexism, because I’m a dude, so I can’t possibly know about it to the extent that they do.