Notably, socialist movements in the early 20th century attracted a large following among farmers and industrial workers - the very people who today’s left treats as villainous “oppressors” and who now disproportionately vote Republican because of this!
Fascism also appealed to many of these same groups.
Fascism and Nazism weren’t as successful at recruiting factory workers because of their anti-union platforms. The bulk of their base was made up of members of the lower middle class (e.g. small business owners etc) rather than industrial workers, who in the 1920s and 1930s gravitated more towards the Social Democratic and sometimes Communist movements. Farm owners (but not farm workers) in Italy and Germany tended to be supportive of the Fascists and Nazis as well - precisely because they were (understandably) concerned that socialists and communists would nationalize their private property, something the Fascists did not do.