In the US culture, violence is celebrated on TV, Video Games, Movies and in the para-military and military. Gun ownership is considered a sign of masculinity (maybe in place of a penis) and the apathy of the public is based on helplessness.

Stricter gun laws, although they won't eliminate the problem, don't reinforce the violence.
These laws make it less easy for NRA lobbyists to get to politicians and take the guns out
of the hands of those who are crazy.

The analogy is, the Civil Rights Movement where you can't legislate prejudice but you can make it easier for minorities to vote, attend a restaurant with decent service, and not be refused work due to race or ethnicity.

The NRA represents not the gun owners per se but the gun manufacturers who are getting rich at the expense of human life. These manufacturers are part of a bigger military industrial complex. Greed at the expense of human lives.