What's up with these emotive labels? Lots of people (myself included) enjoy klyukva - it's an awesome source of hilariously absurd content.
But you'd be surprised how often it actually leaks into supposedly serious reasoning, constantly making you question exactly how far (not even "if") the person you are talking to is detached from objective reality and what are their assumptions. There are quite a few examples of this even in this comment section.
Obviously this is not really unique - likely an extremely common view of foreign cultures people aren't really exposed to. The example with Americans isn't representative though since we are all exposed to this particular culture.