You're right, but the poster above seemed to be talking for a whole population, which I then did too by talking about Americans as a counter-example. It's just that my experience of the Netherlands isn't that they are particularly racist, but if you haven't experienced other cultures then it is easy to lose calibration. Like how a lot of Americans tend to think of the country as number one in a lot of things (e.g. education), but when you visit other countries or explore other cultures you find out your views are miscalibrated.