Fascism was strongly influenced by Futurism and its optimism for a machine-powered future where technology will bring forth utopia and order.

It’s no wonder than Thiel & co. are rediscovering Futurism, and blind faith in the machine is basically what Silicon Valley is all about.

I think the term 'techno' in 'technofascism' is doing the work here, because--just as you claim that historical fascism is the idolatry of the state--technofascism is the idolatry of technology and intelligence. Modern accelerationism, as espoused today by people like Marc Andreessen in his Techno-Optimist Manifesto, is really just another rehash of Italian Futurism, which was closely intertwined with Italian Fascism and one of its intellectual foundations. It was, essentially, a progressive ideology. The idolatry of the state does not vanish, but rather gets transformed and re-imagined as a technology, e.g. network states, platform governance, companies that function as sovereign entities. The idolatry shifts from the nation-state to the infrastructure that replaces it. Also, you don't need to look far to answer your own question about corporatism, as you defined it yourself. Now, who's currently moving between Silicon Valley boardrooms and government offices?