I don’t like that rhetoric either, but unfortunately certain radical ideologies do not acknowledge neutrality. Maybe we can turn to John Stuart Mill for a more eloquent appeal:

“ Let not any one pacify his conscience by the delusion that he can do no harm if he takes no part, and forms no opinion. Bad men need nothing more to compass their ends, than that good men should look on and do nothing. He is not a good man who, without a protest, allows wrong to be committed in his name, and with the means which he helps to supply, because he will not trouble himself to use his mind on the subject.”

> certain radical ideologies do not acknowledge neutrality

So what? Why can't we acknowledge neutrality because some other people don't?

Just providing a nuanced counterpoint, not denying or refuting anything you said.

Read the quoted part again. S/He wasn't a bystander, s/he supported the discrimination (probably silently), as long as it was subtle.

Obviously I'm not saying you always have to risk your job/career/livelihood/reputation to take unpopular (but right) action. That's just a nice-to-have.