but if I had the slightest doubt about that, then I would call the police, who would track you down and verify that you were bluffing.

You appear to be confused. Wfg didn't propose to murder 6700 people. You did mathematics by which you judge wfg to be doing something as morally bad as 6700 murders. That doesn't mean he is breaking the law or doing anything that would give you the power to use the police to exercise your will upon him.

I disapprove of the parent vehemently.