[sha666sum]

I live in $civilized_country and have gotten one unsolicited phone call ever. It was from an Indian, so either it was a scam or someone who doesn't adhere to telemarketing blocklists.

Do not blame USA's inadequacies on human nature.

[perl4ever]

People in the US don't get uniform amounts of spam calls, so I'm doubtful that your experience can be taken as representative of your entire country.

[NateEag]

If it were not for human nature, no intervention to prevent scammers and telemarketers would be necessary.