I can't speak for politicians and political speak, which nauseates me. I can tell you where I stand.
If they want to change constitutional rights, then there's a process for doing such, it's called a constitutional amendment. I would actually support some gun law legislation, but it can't simply be done by an act of Congress. I think the Constitution has been bastardized enough, and that hasn't been working out very well when it happens (I'll pick the low hanging fruit, an overly burdensome federal bureaucracy was never the intent of the framers, yet that's what we have).
We're either a nation of laws or we're not, we can't cherry pick what we choose to honor and what we choose to discard merely because that's what some faction wants.
I also dislike executive orders, another provision abused when a president refuses to follow due process. Legislation should be passed and modified in accordance with the law of the land. I'll respect any legislation passed lawfully, and mock idiots for being idiots when they do otherwise.