Under capitalism (or really any socio-economic system) we engage with services for reasons other than choice all the time. For example, if you're living in an area where just one or two banks exist, and both of them suddenly decide to force DRM because their cyber insurance company told them to, you can suddenly no longer access their sites on Linux. That's pretty fucked up.
The people who want to use DRM to solve their problems should just suck it up and find alternatives.