Is it okay for someone to have bigoted views as long as they stay quiet about them?

Whether it be racism, sexism, homophobia or whatever, is it ok for someone to have these type of views as long as they stay quiet about those views and don’t let it interfere with how they conduct their lives?

I know plenty of people like this who hold particular opinions and perhaps express them in a “safe place” but would never mistreat anyone for those reasons. Doesn’t make it okay, but some people are just brainwashed and have no intention of changing.

Or in a perfect world, would you rather bigotry didn’t exist in anyone’s mind whatsoever?