Heh, I have a variant of Hanlon's Razor: Never attribute, to bigotry, that which can be explained by misanthropy.
That is, don't assume that bad behavior is because of someone's membership in a particular demographic, when it could just be a general instance of people being assholes.
This reminds me a sexual harassment training class I had to take at a startup decades ago. [They actually called it that too, like they were training us how to sexually harass!] We learned about something called the equal opportunity jerk defense. If you could prove you were an asshole to everyone, then you weren't guilty of sexual harrassment.
That is, don't assume that bad behavior is because of someone's membership in a particular demographic, when it could just be a general instance of people being assholes.