No, that's not true. Real estate can be purchased and owned, resold over and over without being improved by labor. Land property is not created by laboring on it, in fact it was always there.
The initial labor is what creates the property. It can then be traded and whatnot. But it was not property before the initial labor that transformed wild land to something useful.
> Land property is not created by laboring on it, in fact it was always there.
There is much untouched land on the moon. Who owns that?
Land exists before improvement, but it is not property until improved through labor by people. That's just how the property rights on which our civilization is based work.
https://en.wikipedia.org/w/index.php?title=Moon_Treaty&oldid...
Intellectual properties are generally more creative based endeavors and should be protected as such IMO