Just remember, that the Bill of Rights can’t be touched.
I'm certainly no Constitutional scholar but I suspect that you're wrong there...at least from a "Constitutional" point of view.
Is there anything that can't be added to the Constitution in the form of an Amendment? My guess is that there isn't.Is there any part of the Constitution...including Amendments...that cannot be modified or removed through the Amendment process? My guess is that there isn't.
Now would any removal of,or modification of,the 2nd Amendment make it all the way through the Amendment process (including three-quarters of state legislatures)? My guess is that it wouldn't.But if I'm correct *there* we're talking about political realities rather than Constitutional law.