Don, you made some good, commonsense points and pretty-much had me until you stuck in your "Love it or leave it" jibe:

"Maybe if McCoy, and others like her, find it unbearable to cope with all the tragedies in the U.S., they might wish to consider relocating to Australia."

Don, as McCoy,  I too  am appalled at the number of gun deaths in America, many times higher per capita than most other advanced nations.  And I no more intend to leave my country than I'd expect you to.