[foal]

Just to take one more shot at a point that's already beaten to death, you can believe that property rights don't exist inherently AND that property is theft, but if you're in a society where most desirable objects are claimed to be "owned" and defending with force then of course you're going to want to "own" things within that system. Otherwise everyone else is going to be supremely advantaged over you. You can try to change the rules of the game, but before you've done so you still have to play by the current rules.

A proper way of approaching this argument is to think of an example WITHIN the type of system they are advocating in, in which you think they would not appreciate not having property rights.