I don't think you can compare pre-WWI Germany to the US for many reasons. In the colonial era, Germany as a fairly new state and unlike the UK, Spain, France, even Portugal or the Netherlands, they didn't have colonies to exploit. Worse, in the industrialization era they didn't have access to oil.
This created a paranoia in Germany, an insecurity that were between Great Powers and were dependent on imports and poorer than their neighbours. They felt like they'd eventually get swallowed unless they did something and the end result was WWI. And WW2 if you think about it.
The cost of victory against Germany (twice) was huge. All those Great Powers lost their colonies and they impoverished themselves with war economies while enriching the United States who, at times, sold arms to all sides.
The US is that Great Power now, complete with colonies. It's energy independent too. So it's nohting like Germany. In fact it's turned Europe into a client state (ie through NATO). These aren't colonies in the British Empire sense of occupying India, for example. It's economic colonialism. The Global South is controlled via the IMF and World Bank. The developed world is controlled with security gurantees.
But where I agree with you is that an absolutel moron has come along and threatens to dismantle this entire system. That's what's happening. Splintering NATO, abolishing USAID, etc all diminish American soft (and hard) power.
China's foreign policy has become to sit and wait while the US destroys itself. They don't have to do anything anymore. It's why i laugh when people predict China will invade Taiwan. No they won't. Why? Because they don't have to. As a reminder, One China is the official policy of the US government.
My problem is that empires don't die quietly. They die violently. And we're going to see a wave of fascism. Things are going to get much, much worse before they get better.
Even if China begins to take over much of the world's economic power, I don't think the rest of the world will accept Chinese culture in the face of Western social values.
The wave of fascism is already rising in Europe, but it is still very much under control. Like the AfD political party in Germany.
> They felt like they'd eventually get swallowed unless they did something and the end result was WWI. And WW2 if you think about it.
I think this exactly how the US administration _feels_. Alexandr Dugin proposed spheres of influence. Russia starts acting on those. China is getting more powerful. Its now or never.