Earlier quoted context omitted.
Americans are not uniformly harassed, and I am sure people in your country aren't either, so your sneering conclusion is baseless.
#robocall complaints (USA, 2018): 3.8 million #robocall complaints (Germany, 2018): 13375 https://www.ftc.gov/policy/reports/policy-reports/commission... https://www.bundesnetzagentur.de/SharedDocs/Downloads/DE/All...
I'd also doubt assumptions such as people are equally likely to report, it's equally easy to report, counting is done the same way, etc., so I don't think your response is sufficient to characterize the average.