A concise yet detailed definition of fascism

I recently ran across this definition of fascism:

A form of political behavior marked by obsessive preoccupation with community decline, humiliation or victimhood and by compensatory cults of unity, energy and purity, in which a mass-based party of committed nationalist militants, working in uneasy but effective collaboration with traditional elites, abandons democratic liberties and pursues with redemptive violence and without ethical or legal restraints, goals of internal cleansing and external expansion.

This comes from Robert Paxton's The Anatomy of Fascism, quoted by this article.  I think it is a very accurate description of many of the forces driving the current political juncture in the US as well as in many other countries that have taken a turn towards authoritarianism.