I don’t know about the legality of the issues with cracking any blu-ray disks, or even if they are encrypted. But unless the law has changed in the US, cracking DVD lockouts is a criminal offense because of the Digital Millennium Copyright Act (DMCA). It has nothing to do with whether or not you have paid for the content. It has everything to do with the act of illegal cracking.
At my age (mid 50’s now), I reslize that it’s just easier to go by the rules. I may crack something just to prove to myself that it can be done. But somehow having a bunch of stolen/cracked software and entertainment on my PC isn’t much fun. We need an exclusive compressed video format that can only be used under open-source rules. These days, you don’t need to be the one in a million band or motion company that makes it big, to be a talented recording artist or executive producer. So the content providers should be willing if the technology is available to them.