The constitution has stipulated provisions to change its nature, based on what majorities happen to believe at any one time. What is off limits to an amendment?
Freegards
Only what would be inconsistent the intent of the Framers, and their ethos. But as i have said, the government is by the people, as they elect, directly or indirectly, the interpreters of the constitution, and which is reflective of the ethos and judgment of the electorate, for good or for evil.
It is a work of the evangelical NT church to bring souls to be controlled from within so that they need not be controlled from without, and wisely elect those who do the needed controlling, and administration.
We can rightfully argue that the framers would not support such a abominable novelty as so-called "gay marriage," but which is a result of the electorate becoming increasingly post-Christian in reality.
For the time is come that judgment must begin at the house of God: and if it first begin at us, what shall the end be of them that obey not the gospel of God? And if the righteous scarcely be saved, where shall the ungodly and the sinner appear? Wherefore let them that suffer according to the will of God commit the keeping of their souls to him in well doing, as unto a faithful Creator. (1 Peter 4:17-19)