If there were a conservative party in the United States, it would be proposing an Amendment to the Constitution to restrict the use of the Commerce Clause by the federal government since our modern jurists and representatives perceive it has infinite elasticity. Given that Congress is likely to be unwilling to restrict its own behavior, this change will need to occur via petition from the states for a convention.
Unfortunately, there is no conservative party and there is no organized effort to return to Constitutional law. Both Republicans and Democrats in Congress, the Executive Branch, and the Judiciary benefit from the current approach to governing using a “living” constitution.
There is a Constitution Party.
Most young people wouldn’t know what a Constitution is.