Go actually READ the Constitution. Parts of it apply to all people. Parts don't. They could use a bit of clarity in places, but it's usually pretty clearer. It's a LOT clearer than my state constitution. And it's not horrendously long. Only about five pages (depending, of course, and page size and font, but I'm thinking of 8 1/2X11 inch paper and 10 point Times-Roman...but this *is* an estimate, since it's been awhile since I printed it out).
But, e.g., "Congress shall make no law..." clearly indicates that a law in that area is forbidden to regulate ANYONE. Of course, before the Civil War it was expected that such areas would be regulated by the various states...but then never updated the Constitution when they changed to a powerful Federal Government weak State Government system. All they did was decide to "reinterpret" (i.e., ignore when convenient) what the constitution said. This was, and is, dereliction of duty. Probably misfeasance rather than malfeasance in the not fixing it arm of action, but clearly malfeasance in the enforcement arm. (In the case of the Supreme Court malfeasance seems more accurate than misfeasance.)
OTOH, it takes a long time to get an amendment through the adoption process. When something needs addressing quickly, you can't wait for the Constitution to be fixed. But ignoring that problem doesn't get the problem solved, it just sweeps it under the rug.