Right DRM is not copy protection. DRM is about keeping legitimate buyers from exercising free trade. You can't buy up a dozen games on steam, for example, and resell the games on. Of course people still do, but that's what steam's drm is intended to quell. You can't take a bluray, make a copy, upload it to somebody's email for a price, and destroy the original. This is a perfectly honest thing to do, it's super easy to do, but it's incredibly risky in the US to do it.