That is not what they are saying. It is perfectly valid to say that there are zero contemporary primary sources to confirm the existence of Jesus. Historians have come to the consensus that he most likely existed, on account of the influence stemming from later sources, but they all also know there are no contemporary sources, so that consensus is based on circumstantial evidence.

The historicity of Paul is not robust, it is definitely better sourced than Jesus, but that historicity stems from himself, and as we cannot take his supernatural religous experiences for fact (he can very well have believed them as fact, but we know that they cannot have happened in objective reality like that), he is not exactly the most reliable witness in the first place.

I think Harry Potter is pretty shitty and uninteresting fiction. It is not really a constructive argument though, because it is entirely subjective. A lot of people thinks that Lovecraft wrote some great and interesting fiction, so I am not really sure what you are trying to say.

Also educated people tend to vocally disagree with fascists, so obviously fascists wants fewer of them around.

Considering the entire history of the US is one big upwards transfer of wealth, that is really saying something.