You get that you don't need to add that to the State Constitution because it's already in the Federal Constitution, right? If a state tried to override the second amendment, the Supreme Court would throw out that override.

Folks are in favor of adding the reproductive amendment because the Supreme Court has essentially said "states should decide this", and so now states are doing exactly that.

AFAIK the slavery amendment is more for show/principle, and does fall under what could be categorized as liberal nonsense. Although, it never does any harm to make sure no one is keeping slaves, for any reason.