All authoritarian regimes have been socialist

Never forget 9/11/73 Chile

...but all socialist regimes have been authoritarian or totalitarian.

Catalonia? Paris? Manchuria? Makhnovia? The Zapatistas?

Got any facts beyond a list of names?

These are all examples of anarchist and libertarian socialist/syndicalist collectives that were not authoritarian.

I said socialist "regimes" not collectives. To be fair I should've given a definition of regime, which I defined as "the ruling government of a nation, especially an authoritarian or totalitarian one".

You have not provided any information beyond names and your claim. I want sources/evidence.

Then yes, Socialist regimes are authoritarian and are doomed to fail due to centralized control.

Anarchists seized the opportunity in the midst of the Spanish Civil War to occupy territory in Catalonia and build worker cooperatives out of the skeletons of capitalist industry. This was a working example of anarcho-syndicalism for roughly three years, until the Nationalists defeated the CNT/anarchists. Similar events unfolded in Paris in 1871, but in a much shorter time period.

I don't know enough about Makhnovia and Manchuria. In the midst of the rise of the Bolshevik state, Nestor Makhno's army was able to occupy the Free Territory (in Ukraine), a population of 7 million, until the Soviets took them over after 3 years. For Manchuria, look up the Korean Anarchist Federation in Manchuria. They were ultimately usurped by imperial Japanese forces.

The Zapatista Rebel Army, while not anarchist, practices libertarian communistic principles of horizontal autonomy and mutual aid, and has in municipalities in Chiapas since 1994.

I think socialism fails for more reasons than that, but I agree.

Where did you learn about all these collectives staging revolts/revolutions?

Bad news: Hitler and Mussolini were socialists.

Mussolini started out as a socialist then turned to nationalistic fascism. Hitler was influenced by Mussolini's fascism. Both later destroyed unions and union practices.

Did communist governments allow independent trade unions?

They also heavily privatized, heavily militarized, had social values incompatible with socialism, they dissolved leftist parties and killed off their members, etc. etc.

BuT tHeY wErE tHe NaTiOnAl SoCiAlIsT gErMaN wOrKeRs PaRtY

Lmao I legit had an argument with someone on imgflip who still held on to this braindead talking point even after I pointed out in great detail how it doesn't mean anything. And that was literally all he had.

Bad news: you're completely and utterly wrong, as usual.