Yes, moral injury. Thanks for giving me a new way to frame that experience.

The natural impulse to be sociable and get along with people combined with minor insecurity or social anxiety has led to social experiences that when I reflect on them, I can only cringe in shame at my timid response to some awful statements.

It's not like you have a lot of options. You won't be changing these people. It's not your job. But you do need to protect yourself.

It is okay to interrupt them and walk away, especially to any stranger or faint acquaintance. And to say "I'm not sure I agree with that" and let them keep talking will at least let them know where you stand.