I had the same reaction, but then some cursory searching led me to this discussion on the "Talk" page for Wikiquote's entry on Mussolini which casts some doubt on the accuracy of the attribution and/or translation of this line:

https://en.wikiquote.org/wiki/Talk:Benito_Mussolini#Fascism_...

From there:

> At its core, the quoted saying is incompatible with fascism and frankly nonsensical. Under fascism, the state uses the market efficiency of capitalism to regulate and control the economy, namely by concentrating market shares to a relatively few large corporations into cartels, which in turn the fascist state has direct control over. Whereas, corporatism is state control by large interest groups, commonly pictured as large multi-national corporations with monopolistic powers. In other words, the controlling party under corporatism is the reverse of that under fascism."Fascism recognizes the real needs which gave rise to socialism and trade unionism, giving them due weight in the guild or corporative system in which divergent interests are coordinated and harmonized in the unity of the State."The Doctrine of Fascism (1932) by Benito Mussolini and Giovanni Gentile

Not true though!

In Italian, corporativismo has a distinct meaning that is unrelated to the concept of commercial corporations. It refers to a system of collaboration between social groups, represented through joint associations of employers and workers. Essentially, it is a state-aligned alternative to independent trade unions, a "national syndicalism" of sorts.

The quote itself doesn’t appear to be a mistranslation—it just doesn’t seem to exist. (https://politicalresearch.org/2005/01/12/mussolini-corporate...)

Muskotrumpia may excel in performance-based state capture, but fascism it is not. The anti-state culture of the U.S. clashes with the "everything for the state" ethos that defines fascism. We're simply entering textbook Caesarism territory.