It depends. If they believe in things that are WRONG, like racism, sexism, etc. then I will judge the heck out of them.

So, as long as they don't seek to hurt you, truth means nothing.

No. Seeking to be honest and truthful is the foundation of morality. Seeking to just get along , truth be damned, is pure sloth. So is being incurious. It's not that they lack the horsepower; they just don't care to be responsible. Eventually, the ignorance becomes willful and arrogant, and that's when the violence kicks in. (Seen any scientists kill each other over disagreements?)