I thought the reason why Jamestown failed was that it was populated entirely by prospectors, who spent their time looking for wealth instead of farming. It wasn't so much laziness as an imbalance of skills. Some other societies that operated a communal approach to production and distribution, such as the Thirty Reductions in Paraguay, did so successfully. So I think that this idea you often hear from Americans, that under such a system there cannot be any motivation to work and it will inevitably fail, is too simplistic.