Most gun deaths are by suicide. There are higher gun murder rates in other countries per capita.

I agree that there should be background checks and what not before people purchase firearms, but there already are..
There are hundreds of millions of guns in the United States. Pandora's box has already been opened at this point. Taking away guns is not realistic, and doing so will leave them in the hands of people who disregard the law, aka the perpetrators of mass shootings and gang violence (which constitutes a big portion of gun-deaths).