re: Gun control in Europe is almost total. Hasn't stopped mass shooting attacks like Las Vegas

I believe you are missing the overall point. The UK has banned guns and knives. The last I heard you could only have a gun or use one at the shooting range-- as you left you turned the gun in.

Even with all of the bannings of all knives and guns the terrorists are using trucks in Europe and it has been reported at times after plowing people they are hopping out and knifing police and others.

So you can ban everything and they will find a way to kill with a truck or blackmarket weapons.