These people should stop. The only part of the Declaration that had force of law was the declaration that the U.S.A. was coming into being. All the other words were, to put it bluntly, unnecessary.
On the other extreme, every word of the U.S. Constitution is law - "the supreme law of the land." As soon as it came into existence, it rendered the Declaration a historical artifact.
If someone tries to support their political views by referring to the Declaration - particularly when it conflicts with the U.S. Constitution - don't let them.
