A strain of thought from the end-stage of civilization, partially disconnected from the best wisdom of the past. A conception of rights and powers disconnected from foundational considerations of community and commonweal. Hemmingway lauded the murderous Spanish Republicans with Donnes poetic phrases beginning with No man is an island. Radically individual freedom of the sexual-leftist variety is more closely related with the libertarian conception of freedom, disconnected from the core understanding of freedom, not as the ability to do what one wills, but freedom from compulsion to do ill: Freedom is the ability to do what one ought, for self, family, community, nation and world.
The word for corrupted liberty is license. It is license which the Left promotes, for like everything else the Left does, it undermines civil society.
Our Framers back then, and most Americans today support ordered liberty enforced by societal norms and proscriptions.