Contempt is very different to hate.

It is very interesting, in our polarized times, what people read into a statement, and if they interpret it charitably or in the worst possible way. Like you, I find contempt and hate very different.

The author clarifies a couple sentences later that the contempt they feel is "the cold, hard anger you hold for a collaborator" - "collaborator" apparently meaning something like the very bad WWII kind of collaborator, rather than the benign artistic co-author kind. So, despite the implicit acknowledgement that there are multiple types of contempt, this particular contempt does sound fairly close to hatred.

No, it sounds like contempt and anger, which is why I suspect the author used those words.

Look up the definition of "hate". How is "cold, hard anger" like one might feel toward a N*zi collaborator not adjacent to that? Why quibble over this?

Geez, what an insane semantic debate. The author clearly has strong, negative emotions towards the people this article is about. Folks who want to nitpick the technicality of these terms are just misunderstanding how language works.