Dredd Scott was also "the law."
And it was also illegal for Rosa Parks to sit in the front of a bus.
Yes, this subject has everything to do with the issues at hand. Individual rights are consistently applied, or they aren't. I am accused of being inconsistent in this. How consistent are you?
Remember, the "habeus corpus" legislation you are complaining about was passed by the Congress and signed. It's now, as you like to put it, "the law."
You might want to sit down with a cup of tea or something and work out your positions a little more clearly.