Having strong opinions about how people should behave that doesn’t align with everyone else’s is a natural path to authoritarianism, regardless of political alignment.

The best defence is accepting multiple ways to live, some hippies are open minded that way and I’d I expect them to be immune, but of course there’s always been the “oh you must not ever put unnatural chemicals in your body” or “we need to return to hunter gatherer dynamics which definitely existed in exactly the way I dream of” nutters, who are ripe for radicalising.