Earlier quoted context omitted.
You are forgetting the word "purely." If some fascist incites people to riot and innocent police officers get killed (hypothetical example), then there are strong political reasons to put the perpetrators behind bars for their crimes. Law and order is a political issue. Protection of institutions is a political issue. The First Amendment doesn't say you can incite a riot as long as it is a political riot. That a crim…
Do you understand how high the bar is for a conviction in an incitement case?
> In a so-called liberal state we shouldn't send people behind bars for political reasons, not even fascists
Note the "shouldn't" -- even if your point were valid, it's moot because this is a conversation about "should" not "do."
Gitlow v. New York upheld conviction based on a loose interpretation of "clear and present danger," and later Feiner v. New York held that the police can take action against speech when there is a clear and present danger. But again, none of that matters because we're not debating legal theory, nor implementation of law.
Are you suggesting that we should pardon all criminals who are motivated in part or in whole by political reasons?