It has been proven that communism/socialism on a grand scale is impossible because redistributing the wealth is so massive an endeavor. Especially when you are thinking of a worldwide community. You're asking too much of people, everyone in the world would be forced to learn either English or Chinese, both difficult languages. Then the idea of vegetarianism is terrible. People love meat. You can not control the masses by taking away from them. You require Bread and Circuses, for their support.