Paul Ryan, whether he intends it or not, is actually following the Constitution with the "shall not be infringed" part of the 2nd Amendment. You do understand that "shall not be infringed" means the government shall not control? And that shall not control includes controlling in ways that you happen to like.
National reciprocity is nothing more than a government power grab over the right to bear arms and there is no way that power grab can be justified to anyone who understands how the Commerce Clause has been abused in order to give Daddy Fed power over things the government was never meant to have power over no matter how many threads you start touting how wonderful it would be for Daddy Fed to grant you the privilege of carrying concealed across state lines.
One more time. If Daddy Fed can use the Commerce Clause to grant you the privilege to carry a concealed gun across state lines Daddy Fed can also use that same Commerce Clause to deny you the privilege of carrying a concealed gun anywhere. All it takes is a liberal interpretation of a National Reciprocity law to mean all States must have the same criteria for carry permits (fully supported by the States with the most restrictive carry laws) for the entire country to end up with the requirements to obtain a carry permit so restrictive, so onerous, so expensive, and so impossible to obtain that only the rich, powerful, and connected would be able to get one.
But then the supporters of a National Reciprocity law who are blinded by the shiny promise of having permission to carry across state lines don't seem to be able to entertain the notion that there will be unintended consequences.
What is really sad is many of those supporters have fallen for the sales pitch that getting Daddy Fed's permission through National Reciprocity is a step forward for the right to bear arms never understanding that if it is a right you don't need permission to do it but if you have to get permission then it is a privilege controlled by whoever is in charge of granting, or denying, a permit to do it.
But then I suspect that for some folks having a carry permit is an ego thing being proof to themselves they are more special than others.