Land, in whatever ownership, has to be cared for. Now, I don't know whether I'd trust this state to do that properly.

Forests in Germany are owned privately, by state, and by "Laender" and other regional and local communities.
It's a big task to look after them well.

Look what state "forests" you have here: plantations scattered all over, at the wrong places, of alien species, with no widespread biodiversity or recreational function for people to enjoy.

I see a catastrophe if the state was in charge of agricultural land...