Fact check says comparison is almost impossible to make but worst case guesstimate is violent crime rate no more than 2x US one. http://blog.skepticallibertarian.com/2013/01/12/fact-checking-ben-swann-is-the-uk-really-5-times-more-violent-than-the-us/ if you want some evidence. Note – this guy is pro-gun. My gut feel is I don’t feel threatened here on the whole and certainly not by guns.
It’s called a “zarf” so the “punchline” (for want of a better word) would be ‘No zarf left behind’ hashtag lame.