A better comparison would be this: Your neighbor, Mr Iran, has expressed a wish to purchase a bag of fertilizer from the local Home Depot.
He hasn’t hurt a fly in his life, and swears he will only use it for his garden.
However, since he is from another country, you realize that he is actually trying to make a fertilizer bomb and blow up the entire neighborhood.
He has also spoken disapprovingly of a certain Mr Israel, a fellow who regularly occupies his neighbors lawn and generously allows the original inhabitants of his house, Mr and Mrs Palestine, to live in a pen in part of the back yard. Mr Iran even gone as far as to say he’d be happier if Mr Israel would move to another neighborhood. Mr Israel posses several fertilizer bombs, but you are sure he would only ever use them in self defense.
So you resolve to go to Mr Iran’s place in the middle of the night, kick the door in, kill Mr Iran and a few of his relatives and then keep the rest of them locked up in the basement for the foreseeable future, just in case they too get terrorist ideas.
Naturally, you are quite sure the plan could at least not do any harm, since you are an excellent shot and own a beautiful collection of handguns. Thus the chance of Mr Iran hurting you in the process would be slim.
Besides, it would act as a deterrent to other neighbors who might harbor plans of genocide.
Also, Mr Iran owns one of the largest pools in the area, which you would be free to use after liberating his long-suffering family from the tyranny you’re sure they suffer.
Your neighbor, a Mr Swede (me), a good friend who only thinks about your best interests, advises you not to do this, and reminds you of the unfortunate affair with Mr Iraq last year. Poor Mr Iraq. He turned out not to have a nuclear bomb in his garden shed after all. You comfort yourself that you’re free to use his pool while the other neighbors help you rebuild his house.