So? The First amendment was not meant to be read as protecting speech except when it comes to campaigns. The Second amendment was not meant to be read as protecting the national guard. The Fourth amendment was not meant to be read as allowing Feds to go snooping around someone's house based on suspicion that they're growing plants or have a chem lab. The Fifth amendment was not meant to be read as allowing governments to steal property and give it to another private party. Shall I go on?The COTUS was definitely NOT meant as a document for each individual to define in his own manner and disobey whatever law he sees fit with no one to judge whether or not he was right to do so.
There are a lot of broken cogs in the machine. Personal interpretation of the Constitution is a symptom of broken cogs elsewhere in the machine; it is not a disease in itself.
The Supreme Court didn't really determine constitutionality in Scott v. Sanford, and that decision wasn't condemned by a vast majority of the people as Kelo has been. It seems the will of the people always has the final say, at least when it's nearly unanimous as it is in this case (online polls show 1-3% support for Kelo v. New London).