It's a matter of stakes. The Netherlands has no power and very few responsibilities globally. It's often easy to be objective about topics when your stakes are low and distant.
How's that supposed Dutch calm looking when it comes to Italy and fiscal matters these days? I've been following that closely, they've been anything but calm, rational, objective. They're being emotional and subjective, making poor decisions, because it's a very personal subject that is nearby.
The US directly leads the entire military power base of the Western nations, as represented by NATO. And it is the sole backbone to that system. The French and Germans barely have militaries that can project outside of their own borders at this point, and the British are not far behind. China is going the opposite direction, they're a rapidly expanding superpower that is about to project militarily to nearly every corner of the globe, with obvious consequences.
The Netherlands isn't militarily facing off against China in Asia. The US is, every day - and at the eager welcome of numerous nations including Vietnam, South Korea, Japan, Taiwan. The US is the only nation that has directly confronted China and slowed down their annexing of the South China Sea. It won't be the Netherlands that has to make a decision about going to war with China when or if China invades Taiwan to annex them. The Netherlands will barely so much as lift a finger to help; first, they can't do anything because they're weak compared to China; and second they have little real stake in the matter. The US has dozens of allies it is militarily responsible to, countries that count on the US to shield them; the Netherlands has no comparable situation.
The Netherlands has little at stake in the China matter, compared to the US. They're a small trader nation at this point, shielded by larger nations in numerous ways.
So yeah, having dramatically more at stake in every possible way, the US is more charged about the topic than the ... calm and rational Dutch (about a topic they have very little stake in) that don't have to militarily confront China every day.