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I'm looking to identify which post-liberal ideological group has the most adherents in America, particularly between socialist &...

I'm looking to identify which post-liberal ideological group has the most adherents in America, particularly between socialist & reactionary/fascist ideologies, although I'm open to other significant groups.

I have two questions: First, which specific ideology has the most supporters among Communists, Anarchists, Fascists, and Nationalists? Second, between Socialism & Capitalism, which has more ideologically driven supporters who are knowledgeable in theory & actively seeking societal change?