> I’m not suggesting that speech is obstruction, that wouldn’t make sense.
Well, you're half right: that doesn't make sense.
> Speech isn’t the crime, federal obstruction is.
> If you call lawful arrests 'kidnappings', don’t be surprised when the state treats you like an adversary.
It seems like what you're saying is that "call[ing] lawful arrests 'kidnappings'" is obstruction. If you don't want your point of view to be confused, write more words in explanation. Instead, you write like you think other readers are too stupid to get it.
> being questioned isn’t censorship
Well, it can be.
> to examine in order to suppress or delete anything considered objectionable
https://www.merriam-webster.com/dictionary/censor
It mostly depends on the actual intention of the investigation. If they are investigating, well, because he was at a particular public place at a particular time, they are investigating this person because of his speech and public assembly, which is censorship by definition.
They don't have reason to think this person was involved in the actual criminal activity other than, you guessed it, he was at the same, er, public assembly.
> Portraying him as a victim whose free speech was violated is absurd
It is absurd that his freedom of speech was violated in this way. It is especially absurd that you defend your rights being taken from you.