"Fascism should more properly be called Corporatism because it is the merger of state and corporate power.” — Benito Mussolini

More an alternative way of controlling capital.

If you wanted to tax capital via equity stakes, you'd simply have demanded a much larger stake.

What we're doing is starting down the road of "capitalism with Chinese characteristics". It's a tacit admission that the Chinese model can be effective at achieving a nation's strategic economic goals. (More effective than the model we previously championed.)

The real flip side in all of this is that everyone else sees what we're doing for what it is, and they also implement capitalism with Chinese characteristics. Which in and of itself wouldn't be bad. But what if nations like India or Indonesia turn out to be just flat out better than us at it?

Or, God forbid, the nightmare scenario, which would be nations like Brazil being better than us at it?

Nationalized companies don't necessarily mean socialism or fascism but fascists did like giving the state fairly tight ownership and control of companies. It depends on how they handle that - if you see Trump loyalists embedded in lots of boards or top down instructions given to industry that might be a sign.

Or is it more socialism, the public taking ownership in the fruits of labor?

Honestly this is pure horseshoe theory where Bernie Sanders and Trump hold the same views.