>In my scenario what matters is just that you learn that your manager hates your kind and is active in publicizing that hate. Would that not make you feel uncomfortable going back to work as their subordinate?

you'll need to give me details about how this manager would actually treat me in this hypothetical situation

if my manager constantly tweeted content that made it seem like they hated men in tech, but treated me fairly, why should I care about what they post on twitter?