It's the reason we can't make progress at all on guns.
There are people in the anti-gun crowd who have demonstrated time and again that they aren't acting in good faith when they offer "reasonable" solutions, so the pro-gun crowd now refuses to compromise on anything.
You know why it took so long to get background checks for firearm purchases? It's because gun-owners were afraid of a firearm registry that would eventually be used to confiscate their guns. And that was absolutely a goal of the anti-gun crowd.
You know what got us the background checks? Having a compromise that banned the government from keeping a registry of gun owners, but having dealers keep private records of sales so that any specific firearm could be traced from its manufacturer to the first buyer. It was an elegant solution that drastically improved matters, even if it didn't solve everything.
And that's what compromise allows us to do - move forward little by little.
I would love to have a firearm with smart safety features like a fingerprint scanner, but the anti-gun crowd prevents them from being developed because they pushed for laws that would outlaw all guns that don't have the features once they become available on any gun. The result was every gun manufacturer instantly stopped developing the tech to keep their entire portfolios from being banned.
In California, newer pistols, often with improved safety and reliability, are illegal to sell because any new pistol there is required to have a serial number stamp on the firing pin to mark the primer - a feature that doesn't exist. So you've got guns that are decades out of date being sold new there because they're all that's legal. Glock still manufacturers pistols that are old enough they're out of patent because they can be sold in California. Taurus pistols that have killed people because they fire when shaken are legal there, but the newer ones that fixed the safety features are not.
NICS isn't available to the general public for firearm sales because the anti-gun crowd won't settle for that improvement for the time being, and instead wants to go all-in on background checks and a transfer of ownership for lending a gun to a buddy going hunting. Instead of slow-rolling the path to (very necessary) universal background checks, progress is frozen. Straw purchases are easier because gun owners have learned throgh experience not to trust the "other side."
Nobody on either side is willing to compromise on anything anymore and it's depressing, because progress isn't being made. Gun control advocates' overzealousness is a textbook example of letting perfect get in the way of good. Instead of slow progress we're moving backwards.