Your ultimatum and passive agressiveness combine so well with your a/b testing claim. That really makes me see how people that assume others respond or project because of gender are part of the problem. You are clearly caged in by all that scientific data that is one day to be published and reviewed. Good day.
I'm going to ignore all your tone arguments and merely mention there's quite a bit of scientific research on this if you happen to be interested in learning. Feel free to search for it.
Privilege blinds. Waking up to what you have a hard time seeing can be hard. Good luck. Or not, if you'd prefer things stay as they are.
Having had a chance to a/b test this, the real problem is that they do actually do this, not that people simply assume they do.
It's real, it happens. Either start learning about how it effects people or continue going through the world blind to these issues. Your call.