In this thread we are talking about a US based youtuber uploading to a US based video sharing service. Those jurisdictions where it may be legal are out of scope.
If this issue was related to infringing US law, specifically, region-locking out of the US would have been a fair and sane approach. YouTube has the tools for it.
> It is illegal to break the encryption of DVDs and BluRays
Laws have limited jurisdiction. There are quite a few jurisdictions that allow ripping for personal use/not-for-profit.