Ive been to all of the aforementioned countries.  But I'm willing to wager you haven't.  The Japanese are pretty friendly and the culture is warm and inviting I didn't have any complaints.  Paris sucks (thank the refugees) but the majority of France itself is nice.  I wasn't a huge fan of Germany but I'll say one thing for the Germans ... They don't have as many child molesters as the Americans do.  They might of tortured and killed kids; but you didn't hear many reports of them raping them during WWII.  Americans couldn't even boast that during the civil war and we were fighting ourselves but yeah it's a don't throw stones when you live in a glass house kind of world honey.  I wouldn't talk down about anyone else's country atm.  

It's much simpler and more realistic to say that what works for some won't necessarily work for others in respect to gun control laws.  Especially not our entitled (everyone gets a trophy future leaders).  Americans will never surrender their guns period.