Why is this weapon on public sale?

[Skybird]

And I cannot understand how a person claiming the right for self defense - needs military equipment, machine guns or an assault rifle for that.

If this knife would not get produced, it would not be used, wether intentionally, nor by accident. A weapon that does not exist, could not fall into wrong hands, could not beocme an object of prestige at school, could not kill ba accident, and could not make some dumb people behave like idiots with testicles having wandered into their heads (not generalizing, but I have seen enough such imbiciles).

Isn't this circular logic? To claim one invents a weapon just becasue one needs a defense and has a right to defend against such weapons that just got invented?

This weapon is a killing tool, more than a normal knife, or a firearm. It is as uncompromised in it's killing intrention like a grenade. What for do ordinary citizens need this ...? And why the obession with some people to not just fight off and overthrow a criminal attacker, but to see him getting killed for sure - and making a loud mouth about it like Foxtrot just illustrated?

Another reason why I dislike fire-arms and such a knife is, they are so simple to use that every idiot can use them. It is too easy, but wielding a weapon should not be easy. the easier it is, the more bad will happen. and the more unsuited dumbheads will have weapons. And bang - you are lost in the circular logic I explained above.