Welp there you have it. If you want to challenge his conclusion you must walk long and hit more countries than he did.
But then you don’t get to sing that 500 miles song. At least go 5 miles while muttering about multipliers between verses.
Honestly it sounds more like he went in with a preconceived notion, received data that verified his preconceived notion was incorrect, and then told everyone his preconceived notion seemed correct.
Or, you know, decided not to judge the entire human experience by the actions of a handful of individuals.
I’m sorry that you’re dissatisfied with the scientific method of his experience of humanity, which sounds more like an art project than seeking research grants.