As an aside, police violence happens in the countries I mentioned. Not as much, but it does happen. Eg the yellow vest protests in France had a problem with this.
Free speech is extremely important in the United States, especially amongst sensible, regular everyday people. There are some elements on the far left who have been turning against free speech, but thankfully they are fringe groups that are largely ignored (Antifa/BLM Marxists, etc.)
The police fined the guy, which doesn't mean that the french people supported the police on this (they didn't), and that the law supported the police on this (it didn't).
So either police actions are a good scope to evaluate the importance of free speech, or either they aren't, but it shouldn't be only when it's convenient.