Nonsense. for that to be true we would see school slaughters in every country in the civilised world.
How many rapes and stabbings are going in those European school systems? Have they gone up lately because of your immigrant situation or are they swept under the table for the "common good"?
Access to machine guns is the difference.
All firearms are machined nowadays so I don't think you'll get very far with that argument.
*****SMILE*****