A rather pointless and uninformed politically correct diatribe. What exactly is "ethical"food ????
The author might have investigated and written about the efficiency and cultural variety of our food supply. How every possible food is available in our grocery stores fresh and for reasonable / inexpensive prices. Think about the supply logistics involved to feed down-town "Toronto" or similar urban regions. Or the work and risk , science ... behind modern farming. Or actually work on a farm for the experience. "The poor" are a favorite topic of the social justice warriors - who instead of writing this rather trite epic might be better employed volunteering in a local food bank operation, collecting and trucking surplus food from grocery chains, sorting, shelving and interacting with clients. Or investigating how a modern grocey supply chain works .... 
Of course such would sully their virginal minds with evil corporate habits .....