Well, weren’t early fascist movements pretty left wing?

In so far as they were out of power and part of the fractious maelstrom of opposition, sure.

Socialism requires a little bit of a trust in humanity and empathy, which I feel are in short supply. Which makes it very easy to slip into the fascy path …

Socialidm requires you to reject the theory of innate primacy, whether it be individual, familial, racial, national, or otherwise.

But "you're special" is an easy sell, especially if it helps reinforce some other prejudice or satisfy some perceived sleight.