I would go back to the times when humans just were settling, and slap reason into the persons who said first »"this piece of land is not "ours" anymore, but "mine" only«
or »this cattle is not "ours" anymore but "mine" only«
, and would go around preaching that whatever Nature gives us should never be seen as property but rather as things to share freely - coz I believe that neither slave society, nor feudalism, nor capitalism would ever have happened if the means of production
had always stayed in communal/tribal usage
(or communal/tribal property if man-made).