For purposes of repealing or altering the Second Amendment, yes, the Constitution is effectively immutable. But of course anyone is welcome to attempt to get a

For purposes of repealing or altering the Second Amendment, yes, the Constitution is effectively immutable. But of course anyone is welcome to attempt to get a majority of state legislatures onboard to ratify a new amendment. Analogous terms are encoded into most state constitutions - probably have to knock those pesky provisions out as well.