They aren't fascists of course
What are they if not fascists [qm]. It's not as though fascist parties in Europe use that name anymore themselves; the War and the Holocaust did discredit it a tad.
In terms of ideological similarity, yes, it's quite easy to decribe paleoconservatism as a much milder version of fascism, but does that mean fascism is merely an extreme version of paleoconservatism? No, I wouldn't say so. In terms of actual political evolution, the two are quite distinct. Fascism (and I'm talking about the Italian and especially German varieties) is a product more of the revolutionary psychology that also produced Communism. It is not merely a respone to progressivism, but also partly a product of it.