I think fascism, actual theoretical fascism (like untainted communism), removed from the realities of human psychology, would be a conglomeration of corporate states. The decision making is behind closed doors and leadership is decided by those on the inside of the corp, so still keeping the multilayered rights structure of fascism, but distinct in that those running the business would be able to also run the state without corporate influence.

Again, theoretical fascism is never going to happen because a business leader will steer the country to align their corporate interests instead of any public interest, but the idea is there. Fascism, uncorrupted by selfishness and greed, is a corporate state run by people who only answer to internal justice structures that are separate from public policy. But fascism is almost purpose built to give those who are least capable of thinking of others the ability to run those others’ lives so harmful people will always run things.

Communism at least has a chance at public discourse, like democracy but more open to compromise. It’s that compromise that is diametrically opposed to the unilateral decision making (without any public input) of fascism and authoritarians.