Is it not also your responsibility as a parent to teach your child that many others (certainly not all, but many) have a strong moral compass and many will choose not to engage with them if they espouse repugnant views? Including you, the parent.

I can think of nothing more potent an indicator that maybe I've fucked up pretty badly than my own parents deciding my moral compass is so warped it's not worth interacting with me. Assuming they're otherwise loving parents who aren't seriously warped themselves, that would be right up there with "big bright red flashing electric billboard by the freeway calling me a humongous asshole by name" as far as signs that I need to make a change go.