When and what is the usa dominant over?

Economic might is just as important as military might.  Both are required in order to keep the top position.  If the US only have military might but lose their economic might, it could mean the only thing they are worth is being the global police force.

The sooner every1 drops the dollor and trade in Thier own currency and wealth the better. The states has nothing positive apart from misery and killing

Your belief isn't a requirement for it to be true.
The scientific empirical evidence for climate change at this point is undeniable.

Scientific models have taken into account the solar cycles.
The issue is... To many people conflate weather with climate.

Capitalism also allows for the most efficient use and distribution of resources, much more so than many other approaches.
Taking a mixed approach isn't a bad thing either... Many countries already do leverage socialist+capitalist market approaches which work well.

Well. You need economic might first and foremost.
China just underwent it's industrial revolution and it's economic capability is getting rather staggering.

That allows them to afford more military capability... Not only that but their workforce is stupidly cheap, so they get more for their dollar as well.

Either way... Nothing lasts forever, it was inevitable that the USA would fall from it's top spot at some point, it was always a matter of when, not if... Just like every other empire that has come before it.

People have been saying this at least since the 80's, but so far, Japan, China, India, Russia, and the European Union keep on failing to deliver.

Oh if we ever get to a WW3 pray Russia wont be the enemy(You cannot underestimate that military power and intelligence)and outside of Europe the rest of the world might lean more in support of Russia because of geography and traderoutes.

This hasn't been true for a while now. See one year report, page 2: https://www.lazard.com/media/450337/lazard-levelized-cost-of-energy-version-110.pdf

TLDR: Onshore wind is the cheapest and still dropping

The European Union and China have larger economies than the US, though, and India will join them in less than 20 - 30 years.

The thing is, inertia goes a long way. There's still plenty of accumulated prestige and wealth in the US and that isn't disappearing. See, even nowadays, many decades after the end of the British Empire, see how powerful the UK still is culturally and diplomatically. Or the prestige of French as an international language coming all the way from the 19th century and before.

The world has fallen into the keynesian trap, once you fall into it, you can't leave. Japan was said to take over the world during the 80s, but their growth was based on printing money to generate a false growth, it took a huge toll: the growth evaporated and the country only survives because of ridiculously low interest rates to support the increasing goverment debt (over 240% of their GDP).

China right now is the Japan of the 1980s, they ahave been using the central bank printing press to artificially boost growth for over a decade and it is already starting to take the toll, it just a matter of more years ahead until they hit the current situation of japan (no growth at all).

Europe is already deep into the keynesian trap, their rates are negative, the ECB is printing money like crazy to give to their elite friends, and their growth is almost non existent.

The only thing that grows in Europe and Japan now is the debt, with negative interest rates, it's easy for governments to blow their budgets.

US and China are still having some growth, but it is just a matter of time until the Fed and PBOC blow up all their economies by raising their interest rates, and when it happens, they will go to 0 or negative rates like Japan and Europe and will stay in this trap like forever.

The situation of Japan right now became so laughable thet its dubbed as zombie/coma economy.