They don't sack you from the street and put you in a Camp. At least not anymore.
Say what you want about especially Germany, but there you don't get sued by the president for billions if he doesn't like your opinion.
Germany will literally fine you for viewpoints, including criticism of Israel. What happens if you don't pay?
You just get a gestapo raid if you call out the German regime for its lies.
It's worse in Germany. https://de.wikipedia.org/wiki/Schwachkopf-Aff%C3%A4re