BonafideSpaceCadet.
Many other countries banned all guns and enforced it strictly, or you're only allowed to own one with license without ammunition. It worked for them, so why does the US feel so special and entitled to their guns who kill more people by accidents than you soldiers do in an actual war?
People of all age groups are significantly more likely to die from unintentional firearm injuries when they live in states with more guns, relative to states with fewer guns. On average, states with the highest gun levels had nine times the rate of unintentional firearms deaths compared to states with the lowest gun levels
The best answer to your question is that our country is not like these others you have mentioned. (Denmark and Sweden I think?) Those countries are very much smaller than the USA and have a VASTLY different cultural history. I happen to feel that my country IS special when compared to all others.
We have a proud firearms culture in this country that spans generations. Perhaps you cannot relate to that history, and that is ok by me, but know that it is not one easily cast aside because someone says "Gun are bad".
I believe you need to take the culture of a people into account before you can say a blanket statement like the one you said. "Banning all guns" will never be a reality in this country. It will never be accepted here in the USA. You can choose to disagree with that if you like, it doesn't change the fact.