This bozo has the nerve to call himself a law professor? Students at UT Law, you deserve a refund. The Constitution has stood for over two hundred years. How many other Western democracies can say that they have been under the same governing document for that time? And contrary to Levinson's statement it is actually a marvel of clarity, when one discounts emanations from the penumbras!
You got that right! If the stakes were not so high it would be hilarious.
If your local ordnance says "no open carry of handguns", that is plainly an "infringment". If your States requires you to prove your innocence and pay extra taxes and fines to exercise said Right, that is ALSO an "infringement" as well as a violation of self incrimination.
The current legal fiction does not adhere to this. Nor will you find many justices willing to uphold their Oath under the Constitution and rule this way. The government has entirely too much to lose should things return to the way they should be.