The United States and Mexican governments cannot secure the shared border.
Some American firearms are being smuggled into Mexico and are being used by criminals there.
American citizens, therefore, must have their right to keep and bear arms infringed because the U.S. and Mexican governments cannot secure the border nor stop massive criminal activities in Mexico.
A complete ban on gun sales in the U.S. would stop criminal use of prohibited firearms in Mexico because there is no other source of illegal firearms in the world other than the U.S. despite the fact there are known to be about 100 million foreign-made AK-47's throughout the world.
If American firearms could not be legally sold to Americans, Mexican drug gangs would stop killing people with firearms. Also, no American accomplices would smuggle banned firearms into Mexico anymore.
Fixed it for you.
Good post.