I'm a pessimist too, however you may be discounting the effect of capitalism in your analysis. To me it seems reasonable that efforts of a group of cooperatives instead of a group of for-profit companies could lead to a different result.
Of course there are and will also be highly negative effects, but the hope is they will be more easily isolated as a result of many cooperatives taking action to exclude those negative effects and their propagaters, rather than rely on policies and practices of a small number of profit-seeking companies.
Of course there are and will also be highly negative effects, but the hope is they will be more easily isolated as a result of many cooperatives taking action to exclude those negative effects and their propagaters, rather than rely on policies and practices of a small number of profit-seeking companies.