The bulk update request #11639 is pending approval.
mass update guilty_gear_strive ai:1girl -ai:1boy bridget_(guilty_gear) 1boy solo -penis -bulge -> 1girl -1boy
Family friendly easy solution
Honestly? Yeah, this seems like the best choice here. If it turns out to be incorrect in the long run (which I sincerely doubt) we can just reverse the decision or something, can't we? She even looks feminine and is feminine passing, so I don't see why some people are so angry over this aside from their own personal biases.
Hell, someone even said on that one post: "Unless they magically switch genitals when they changed pronouns..." which... okay? But what the user quoted above can actually help keep stuff organized.
Making the transgirl tag may help, but let's be real here- it's bound to be misused to hell and back. Some people think Astolfo is trans but I'd argue that's far from true. That's why I try to use the otoko_no_ko tags for him. Yes, previous knowledge is somewhat required. Astolfo is a bad example here though, since he's famous for being a trap.