Francis and the Catholic Church often speak about a "culture of life." In 1984 the late Cardinal Bernadin of Chicago described it as "seamless garment of life."
During his visit to the United States Pope Francis challenged Americans to respect life at "all stages of development." This includes children, the poor, the unemployed, the elderly. He did not mention the unborn, but it was certainly implied. He spoke out strongly against the death penalty on these grounds. He opposed war. Climate change threatens life.
I am guessing that many in the pro-gun lobby are Christians. I am also guessing that as Christians they think issues related to human life are important. If this is true, isn't it time to bring the crusade to preserve the culture of life to bear on the problem of gun-related deaths in the United States?