Why Don't Bernie and Progressives Live Communally Here and Now?

In a libertarian, Hoppean private-law society, voluntary "socialist" arrangements would be perfectly allowable and legal, but libertarian communites are not permitted in statist ones...That is the fundamental difference between liberty and socialism, between voluntaryism and collectivism, between statism and private property. Nothing prevents progressives from living as they wish now, except the very things they viciously oppose: decentralization, secession, and local control.