This is not off the table Colorado is trying to pass the law as I type this. SB-24-066. It's already out of committee, and with the Dem supermajority it's a done deal. This means its registration, and they know just how much ammo and guns you will have. And of course where you live.
They already know you are armed. This just lets them admit it. YOU ARE NOT AVOIDING THEM unless you've never purchased a hunting license in your life, never used a card to buy a scope, reloading supplies, ammo, or anything even tangentially related to shooting - for your entire life. If you've never logged onto a shooting/hunting forum, belonged to the NRA, GOA, USPSA, IDPA, PRS, NSCA etc - they know/assume you're armed and are on the list.