Online versions of the scam originate primarily in the United States, the United Kingdom and Nigeria, with Ivory Coast, Togo, South Africa, Benin, the Netherlands, and Spain also having high incidences of such fraud
I suggest the parent takes some time, do a little study and call a criminal act what it is, rather than lazily labelling 200m people as scammers.
Edit: grammar
Also, there's no citation for the "primarily in the United States, the United Kingdom and Nigeria..." claim. The reference to Encyclopedia Britannica is dead and presumably was for the "419" name since that's the sentence it's actually on.
AFAIK, the reason the country of Nigeria is frequently associated with advance fee scam probably has more to do with a particularly famous example of a scam phishing email, where the email writer claims to be a Nigerian prince cut off from his substantial family fortune due to political issues of some kind.
http://www.africamasterweb.com/AdSense/419NigerianTownScamme...