Is this serious? It's one of the safest countries in the world. I'm surprised there's even a warning.
I'm not generally as critical of State Dept travel warnings as many others here, but this one might as well say don't ever leave your house. If this were a new warning based on credible evidence, I'd get it, but just a general warning makes me wonder if there's any place in the world that wouldn't get a level 2.
This is what makes people ignore the warnings, even the ones they shouldn't. For somewhere like Paris, a level 2 probably makes sense, but not for The Netherlands (unless I'm missing something).