Keep in mind the third option: it's not just a question of government supporting the property vs government condemning and demolishing it, but there's also simply having the public treat the property with a hands off approach.
Let the owner develop the land if he wants to, just without public subsidizes to support that private enjoyment.
@volkris @mlanger
Of course there are more than two options. I give you @DWTSquawk7600 ‘s recent post and this illustration.