Can't remember the last time there was a mass shooting in the UK or Ireland, tbh. And as I pointed out earlier, our violent crime rates are way below the US's in reality. We have a far broader definition of "violent crime", but last UK census reported that just over 50% of violent crime victims weren't actually physically harmed. Violent crime here could be pinching a woman's bum, which we term as common assault.
If you really look at it, you're nearly 30 times as likely to be shot dead in the US, nearly three times as likely th be raped (not counting prison rape, which isn't a thing here. If you count, it, the likelihood of rape in the US is way, way higher). You're just as likely to be stabbed, robbed, or burgled in each country, but in the US, you're several times more likely to be a victim of car theft.
There's this myth that violent crime is worse in the UK, but it just isn't. I can't even remember the last time a cop was shot here, or that a cop had to shoot someone else. Most police in the UK don't even carry guns.