There is no racial memory. There is the rational conviction that you can't own land because you didn't make the land. Any land that was forcibly fenced off by powerful people was removed from the common good in order to exploit people as tenants and make themselves even more powerful and wealthy. You may argue that that is more efficient (it isn't - we end up with huge holdings planted with monocultures, devoid of wildlife and growing either inferior food that wouldn't grow at all but for massive chemical inputs, or, worse still, crops for biofuel). It is moral to enjoy stewardship of your fair share of land. If you do, you are likely to look after it by improving its soil and draining it so that it will produce the best quality food. Large holdings, over which the landlord may occasionally drive his Range Rover but have little clue as to how the land is being used, are run for profit only. They are regarded as open-air factory floors. That way we get soil degradation leading to erosion, silted-up drains and rivers, deforestation, polluted waterways, dustbowls and desertification. The evidence is everywhere if you open your eyes.