Even if we didn't have a corrupt government and let communities decide their own fate you are going to have:

Mr. Newby who bought the land as an investment and not to farm
Against
This land has been in my family for 200 years and it's staying in my family
Against
This land has been in my family for 200 years and F them I'm selling to Mr. Newby and taking the money and running.

Your idea that we can all do what we want but we'll all do the right thing is a fantasy. Look at the water rights battles.