These people are retards with "us vs them" mentality. It has nothing to do with principles or convictions or Bitcoin/Monero. It is simple tribal monkey behavior.
Which is why no amount of rationale or facts can help persuade their perspective. They have an emotional zealotry and their god cannot be questioned. If you're not a "true" worshiper then you're a heretic. We are us, they are them; kill them.