I totally get what you are saying and it makes sense on the surface, but the culture dynamics of the US in a broader sense do not allow for a widespread belief that guns should be banned just because criminals use them.
The US is a massive, socially diverse nation. So we see people who live near big cities take a look around them and determine that their corner of American society would be better without guns, while people who live outside of these areas do the same thing and determine that guns are of very little threat to them.
Here is the 2016 presidential voting map. It shows voting concentration and thus gun control beliefs...
The threat of crime, in a potential life altering sense, generally speaking, is limited to blue left wing parts of the nation. This is where the black socialist communities are at, where browns go to scam the generous welfare system (especially as it applies to illegal immigration) and where the whites are so afraid of speaking truths that they effectively brainwash one another into political correctness at all times. This is where the crime is at and very little meaningful action is taken to stop it due to law enforcement having their hands tied politically.
Then you look at the map outside of the blue areas and you see that US culture is overwhelmingly right wing in a geographical sense. And it is people in these areas who wonder why they should have to give up their guns essentially because blacks and browns -- whom they are almost entirely insulted from in red areas -- can't behave themselves. There is a lot of anger in these parts that whites in high population areas do not crack down on crime, often side with criminals, etc...
This is the actual source of gun control conflict in the US, but you won't see it framed out this way in the media.