SCOTUS ruled against Dred Scott, Japanese Americans and all motorists too (/Sitz/). They're still wrong and defending illegal actions. Remember, the People hold the supreme power and give the government limited powers through the Constitution. That government may claim exceptions to those limits, but that's no different than a five-year-old claiming he has no bed time. It's only true if you let him get away with it. Where theory and practice diverge is when the five year old has no problem shooting you in the face to enable his My Little Pony marathon.