Bodin / A household or family, the true model of a Commonwealth
>So that Aristotle following Xenophon, seems to me without any probable cause, to have divided the Economical government from the Political, and a City from a Family; which can no otherwise be done, than if we should pull the members from the body; or go about to build a City without houses… Wherefore as a family well and wisely ordered, is the true image of a City, and the domestical government, in sort, like unto the sovereignty in a Commonwealth: so also is the manner of the government of a house or family, the true model for the government of a Commonwealth… And whilest every particular member of the body does his duty, we live in good and perfect health; so also where every family is kept in order, the whole city shall be well and peaceably governed.

Mixed constitutionalist sentiments, IMHO, have killed and unmade monarchies way more than Fascism.
You could comb through a list of regicides
https://en.wikipedia.org/wiki/List_of_regicides
Hardly any fascists responsible for these except a small handful.
Socialists and anarchists have killed more, heck even standard run-of-the-mill liberlaism and right libertarian sentiments have done more harm than Fascism.