Totally distracting aside: I've always felt I wish I could walk around a store with a special set of glasses on so I could apply my own personal voting filters - Chili - benefits monsanto $0.05 per can, KRAFT Foods $1 per can etc... I mean I have a lot of values - I buy small label organics and that does a lot, but sometimes I just want to buy cheetos- I think I would think twice if I knew my enemies were benefitting…
That said, the idea that you can enact change by making "good consumer choices" is probably one of neo-liberalisms greatest, most insidious triumphs. It subverts democratic ideals to make us feel like we have power, while diverting our energy away from pushing for the kinds of systemic changes necessary for meaningful impact on big problem (e.g. putting the responsibility for reduction of plastic pollution on consumers, rather than on manufacturers via legislation).