They have a point in that private ownership per definition means monopolization. If you think about it, that’s the point of ownership, that someone has exclusive rights to use a scarce resource. That’s how far they get before it all bogs down into a horrendous mess of collective terms. There is no such species as “the community” and it can not own anything. Public ownership means state ownership. The only alternative to private monopolization is thus state monopolization.
What’s the Austrian response to that whole land value tax thing? So far I’m kind of sympathetic towards the idea because it seems to avoid the distortionary effects of income or consumption taxes. Then again, the point of taxes is distortion. If the state wanted to reduce economic distortion it would not tax in the first place.