While I know this survey is biased, it’s people who watch Brulosophy content and answer surveys, but my own experience backs this up: https://brulosophy.com/2024/05/27/2024-general-homebrewer-survey-results/
My personal experience mirrors that as well. Everyone in my homebrew group is that. Everyone in surrounding groups (as seen in pictures of state-wide gatherings) is that. 95% of the people I see in homebrew shops are that.
Why?
I am a lady and I ferment plenty of stuff, both drinks and foods. But don’t like beer, so I don’t make it. The only guy I know who makes beer is a white guy, so my experience mirrors yours, but it’s also true that there are minority run commercial breweries and distilleries so I’m sure there is home brewing going on too.