Earlier quoted context omitted.
It's certainly possible, look for the various groups releasing untouched Netflix video on your favourite filesharing platform. They're not about to make their method public though, and last I read up on it I don't think they can do 4k? But SD/720p/1080p is all there.
I believe 4k uses hdcp to your monitor, but the other formats are as simple as screen capturing.
SD/720p/1080p netflix can be de-drm'd losslessly, there's no capture/re-encode step needed (...if you know the technique, I don't but assume it involves the download to watch offline feature).