The damage that toxic people do is incalculable. They will rob you of your focus and make your day a hell.

Statue of Michael in Groningen

The worst toxic people are toxic religious people. They are people who would have shown the same zeal for a different religion, had they been born to that religion. They don't see - they are blind and follow the blind. They didn't choose their faith, and indeed it is not actually faith, but belief, for faith comes from knowing, while beliefs come from pride. Such people are dispensaries of purity tests, as if by issuing purity tests ceaselessly they will never have to face one themselves. They are attracted to law, the absolute, the uncharitable, the severe, and seek to sacrifice YOU, their victim, on the alter of their idol - and their idol is their own ego, not God. These people are called "false prophets" because they turn people away, they mock Truth, they punish others for seeking Truth, they belittle you for having knowledge they lack, they use their misinterpreted snippets from Scripture to portray you as sinful for being a seeker.

These are the most pious people. The most ready to quote scripture. They wear their religion as wolves wearing sheep skin... these Bible toting Fabians.