In the German state of Bavaria, dozens of people are in 'preventive detention' because they might otherwise engage in climate protests, specifically around the car industry exposition IAA in Munich.
Apparently possible for a month there...
https://www.zeit.de/gesellschaft/zeitgeschehen/2023-09/letz...
As much as Germany denies it, it has been proven in the last 10 or so years that they really loved their nazi days. France seems to also love having been under nazi occupation too, and they seem to have a similar anti-environmentalist attitude.
The tactics are tyrannical but not uniquely fascist. Jailing political opponents because they angered the crown is a European tradition that predates Rome.
Fascist is also what humanity uses to refer to actual fascism, which is having a pretty unfortunate resurgence at the moment. Its not just referring to tyranny.
I mean, Nazis have a consistent record of being everything anti human and good personified. Capitalists want oil production to continue, they'll fund fascists to be their force to ensure it goes uninterrupted
Nazis were largely wiped out before society at large realized Carbon emissions were a problem. Externalizing problems with our nation states on "Nazi Gremlins" instead of our lack of dedication to freedom is exactly why these theoretical protestors are political prisoners.
The NSDAP was wiped out in 1945 but denazification was woefully incomplete and individual Nazis held positions of power in institutions like NATO, NASA, West German intelligence, etc, well after the 50s. That's just direct members of the NSDAP and not all the neo-nazi splinter parties which West Germany and United Germany by their own admissions never wiped out. Add onto that various explicitly neo-Nazi groups in other countries and active militant Nazi-adjacent groups overseas and I don't think it's accurate or productive to say that Nazism has been "largely wiped out".
Their motivations were still racist and bad, but the Nazis in Germany were not anti-environment.
Unless you mean modern Nazis, at which point ok maybe I haven't really researched modern Nazis. I know the people they support certainly are, whether they admit they're Nazis or not.
I do think though that the parent comment was mainly referring to detaining people without due process when talking about Nazi Germany, rather than the environmental perspective.