It might have evolved, but Mussolini's fascists initially made their money being hired thugs for the wealthy and industrialists who wanted to directly attack and scupper organising workers.

Similar in Nazi Germany with the Brownshirts iirc.

I guess under Neoliberalism you can kind of just skip the street gangs and use cops to attack unionists, so it's a different set of material conditions these days but the patterns are there.