Letting law-abiding citizens in the US keep their guns serves the same purpose as letting them vote in "elections".
It reinforces the illusion that we are free, and that we have some input as to the manner in which this nation is operated--internally and externally.
Anyone with eyes to see and ears to hear knows better.
Most law-abiding Americans are too polite to say what they really think. Most folks have become so isolated from their neighbors and communities by media propaganda and techno-gadget addiction that they don't realize that nearly EVERYONE thinks the same way they do about the creeping tyranny under which we are suffering.
Not until the People stand up en masse, and start engaging in widespread civil disobedience--not following illegal laws, refusing to comply with "administrative policies" that are threatened against them under color of law, and standing up and refusing to participate in their own victimization--will TPTB move to disarm us.
"They" are getting desperate--they see that the "end game" is near, and that the numbers of the "awake" is reaching critical mass. They are moving to abridge the 1A with reckless abandon, and you can bet that the move to abolish the 2A and 4A won't be far behind. They are at their most dangerous point now--realizing that if they slip, the People will not only defeat them but try to eradicate them from the planet. They are like a cornered wild animal--and we the People must keep our wits about us, and not strike until they fully reveal their true bloodthirsty, life-hating, death-worshiping sociopathic nature.
Then and only then will their expungement from the planet be righteous...
Hopefully, "They" won't pull another false flag before a critical mass of people wake up, because when they do--and they WILL--it will mean that thousands (if not millions) of innocents will be sacrificed on their unholy altars, and then they will use that as an excuse to CLAMP DOWN on speech, RKBA and 4A rights--and most people will be in such a state of shock (like after 9-11) that they will gladly go along with it...