
Drive across the highway in America and see how much under utilized land we have. We also allow enough food to feed the globe (i understand this is a distribution problem) go to waste yearly.
The problems include climate change, which cannot be solved under capitalism because it is not profitable to do so. Rigged private property rights which leads to alot of useless and unproductive ownership of land. And privatized ownership of agriculture. To name a few of the problems. All of which cannot be solved, even with the most social democrat like Bernie Sanders.