Could you be specific? I am having a hard time connecting his dislike for SJWs to any danger of COC violations. This all just seems political intolerance to me.
How is being anti-social justice as a philosophical stance exclude one from working within the bounds of a CoC?
Social justice as an ideology is deeply flawed and runs counter to liberal democratic principles. Every CoC I've seen is just rules for engaging on an open source project. Clearly one could oppose a philosophy and abide by the terms of a CoC. A CoC isn't about policing people, but about civility and rules of engagement for a specific thing.
I would like clarity, as it seems like you are saying that that CoCs are exactly the ideological purity test and purge the detractors like to claim they are, but that seems uncharitable.