Earlier quoted context omitted.
Wow, so every word of your post is probably wrong. Do you not see the problem with the most upvoted and seemingly informative comment on the thread being, at the very least, 20-30 years out of date?
Hah, I do see one heck of a problem. Specially how he describes squatting in such a positive light. You're fucking stealing. Its not positive. Housing policy can be fixed without normalizing stealing.
We currently have rules in quite a few countries that allow nationalisation as well as expropriation under certain conditions. Not using your plot of land could get you expropriated in the Netherlands, just as you can get expropriated if the government wants to build something important enough on your plot of land. You know, like a border wall. You might get some compensation, you might not. Depends on the country and the laws of that region as well as the circumstances.