The Lesson of Grab What You Can/baseline
From Critiques Of Libertarianism
But the Grab World baseline allows us to see that all economic institutions are restrictions and infringements on liberty. Property is the most liberty-destroying and all-encompassing of the restrictive economic institutions, but contracts, patents, copyrights, securities, corporations, and so on do the same thing. With Grab World as the actual blank slate starting point baseline, it's clear that all we are debating about is what set of liberty-infringing restrictions are the best ones (unless you actually advocate the Grab World).
Matt Bruenig, "The Lesson of Grab What You Can"