The most dominant ones rule that's for sure.
It was long time ago when USA was strong with dollar now there is china russia and other brics nations they developing and getting stronger.
Everybody is mainly interested of their own motivations off course to stand for your own tribe that's the human nature first it's you then it's your family and then it's your country.
Now according to this If i would be the brics nations leader or someone from the china or russia who got power.... This is what i would do it:
I would say to Biden " look we are strong too not just usa and dollar only the strongest one If you don't share market with us we don't use dollar and we don't play your rules so you choose you cooperate with us or you lose all the economic power we can even influence canada and Mexico"
So there is now new players on the BLOCK it means less resources and wealth left for average people because usa need to now share the market share but those who make most money ....If they have made before 10x profit and now they make only 5x profit that's still a lot but they are use to with huge profit so what they do is to fire people and starting to find cheaper ways to produce because they have mindset that they need to be super wealthy regardless general economic situation.
If USA corporations don't share with bricks the fairshare then brics can destroy dollar completely even by offering better prices better deals for usa allies like UK or Europe countries, it can go as far as the china and other brics nations can do the peace negoiate with russia and ukraine so the Europe don't deal after the war directly with RUSSIA but through china or other brics nation country.
But USA now not only dominant power that's now obvious.
Off course USA cant use war to win power because everybody have strong military....USA might hope only If issues in other countries going so bad that they would need USA help and USA can get some benefits of that.
In otherwords USA now should focus on weaker countries and nations probably they can give dollar to Crisis mode countries who use dollar that's the biggest business for USA so poor countries where goverments are corrupted and their own currencies crashing and they have commodities and natural resourcues so wich can be then sold by the dollars and even UK and EU can get those products for cheaper from them using dollars.
So USA now should focus on countries where is Crisis and USA can use those country situation to keep dollars in demand USA can now be Active in all the less developed countries and try to take over lands and make them use dollar.
Other than on the big table where world can do without usa the USA got nothing to offer anymore.
That's what happens when you lose control over the world in order to control you need to keep every other countries and Nations weaker financially and by military USA corporations not happy about it that instead of 10x profit now its only 5x.
That's why it's important to keep others poor weak and powerless and without any opportunity to stand up and in debt so then they would never be better then you so usa have failed on this.
The china could offer together with other brics nations better deals for eu and UK ....and Even to canada so world can even do it without dollar that's the reality or china could tell to USA we let you have power but pay us % of your profits:) and USA will likely do that.
And If all the big countries get away from USD then USA last option will be to go into Crisis mode countries wich are weaker then USA and then talking there about democratic values by taking power there.
But wich countries Will be those countries that's interesting.....maybe some small african countries or middle East or some latin american countries...but then again....people in there would ask questions about that a lot.
So again that's why the war in ukraine is important for usa that ukraine can destroy the russia and then usa can deal with china in taiwan situation.
Once USA have take power out of russia and China the rest is easy ...but then again UK and EU see that only benefits of USA not them.
Most likely the world will say to usa, look usa we know you are good OLD strong lion...but you got nothing to offer to us anymore
so what the USA Will Do!?
USA Will take over all the small countries....but then again world start asking ... questions like why russia can't do that or china with Taiwan but USA can ??
So economically usa knows that it's impossible to win war but bigger war seems to be most best option for USA.
What's taken by power can be only kept with power so usa got power with power so only way to keep its by power.
you see it's not pleasent situation either way it's bad off course the dream situation will be for USA if russia can be deafeated 100% and Putin removed that's off course the dream scenario for USA.
Off course the average usa people have their own problems to deal with but corporations are worried about a lot so they would support ukraine all the ways as possible so that russia could be taken over and attacked that's the dream second option will be If wider war Will be starting all over europe then all the benefits will be on usa side and all trade deals and more.
If USA Will start doing that taking over small countries then all the world will ask what you are doing ? We all fight against this and you USA as example Will show bad example so that's not really option.
The option for USA is bigger war but not the way that USA itself is involved but war far away from USA.