Also, may I ask which town or area you were from? My daughter just moved to Utrecht and likes it very much.
I've been to Utrecht many times, because my cousin lived there, and really liked it. Amsterdam used to be great too, but has now become part of the tourist Twilight Zone.
My impression has always been that the Netherlands wasn't very chauvinistic - compared to other countries - and it was famous for its tolerance and lack of religious zealotry. But I think the emptiness of consumer culture has become too much, and so things like football and Eurovision are needed to still have that feeling of belonging to something larger.
I think the root of nazism has always remained alive in Austria. The people here are extremely conformist and they all keep each other in a social stranglehold. That doesn't make them evil per se, just amazingly conditioned.
The reason I moved here, is because it's close to Croatia, it's relatively cheap to build a house (or used to be) on a larger plot of land, and it's still in the EU/West (language, infrastructure, homeschooling options). I also find other people's nationalism less embarrassing than that of my own (knowing all the ins and outs).
But to get back on topic: No, I don't think Jevons Paradox can be explained using Eurovision, unless we're talking music quality.