I will agree that among the major world economic blocks the US seems to be the strongest now, but it also has the world's major asset bubble. Even much of the lending done in Japan and Europe ends up being converted to dollars and to assets in the US. Plus many wealthy chinese were moving capital there. The reason is is so storing is that it is the one major block where government does not act like a headless chicken in times of crisis, it has the tools to intervene financially and does so. That translates to "confidence" for holders of paper wealth and keeps drawing them into the US. Not to the benefit of the US population imo, but it does strengthen the conservation of the current socioeconomic system there.
Strategically the US is trying to stop China dead on its tracks, prevent it from further advancing to #1 economic power in the world. It seems to be having
an effect already. They can't retaliate too hard or their game of quietly taking that #1 spot is up, getting into a cold war now would leave China surrounded by an hostile alliance (Russia could be bought to be a neutral third party, not an ally of China) lacking some critical technology and, most importantly, the resources to keep its population happy during such a competition. This is why I see the direction of this confrontation being on Washington, and that is a huge advantage in the fight. Imho the chinese are bound to lose the "trade war", in the sense that their rise is going to be successfully checked. They're only fighting over the size of the loss. China's loss is assured from the moment they were unable to pry off from the US alliance either its major asian allies (Taiwan, South Korea and Japan) and its european allies. Now and for the foreseeable future they have failed at that.
The end result aimed at by the current US government will be a US still dictating policy in Asia at the cost of Europe moving somewhat apart from the US, and Russia and India doing some kind of non-aligned movement thing. It won't be the old cold war repeated, no such deep division, but it will be a long-term fight between US & asian allies vs China. At least that seems to be the envisioned roadmap now. This roadmap depends on circumstances and options by people on power, it can be changed.
A new financial meltdown now will probably
initially tie the incompetent european governments with their EU governance disaster even deeper with the US, the are incapable of saving their precious project without american financial help, as they were back in 2008. The joker in this is that the current american administration may not resist the impulse of seizing the opportunity to break that project instead of helping them again. It'll be
very interesting if that happens. The US 2020 election is rather important for the world at large.