"bro" doesn't mean male in this context. It's just a general exclamation bro

Tell it like it is, sis.

Oh wow, you blow my mind with your linguistic erudition; I had no idea it was possible to use male-gendered terms in a generic way! Well, all is forgiven, then.

Seriously, just... don't? This isn’t some woke political thing and I dislike excessive policing of language but damn it, there are limits. "Guys" I'll let pass no problem, maybe even "dude" too on a good day. At "bro" I will take a stand, thank you very much.