Because neither rights holders nor politicians want people to think about DRM and copyright too much. If those laws/rights actually became campaign issues or w

Because neither rights holders nor politicians want people to think about DRM and copyright too much. If those laws/rights actually became campaign issues or were uniformly enforced, the whole thing would quickly collapse. Due to the scale on which people ignore these laws this would result in having to fine/punish/demand damages from at least a third of the (US, or anywhere really) population. Think about how long those laws would survive if you did that.