The US' contribution has been incredibly significant and the war would have gone very differently without US support but the idea that the US has contributed most money is false and driven by hubris.
There's various ways of tracking support and by many metrics there are European countries that have given more than the US once you account for population & GDP. It gets more complicated for EU members as the EU has given financial support, so the largest funders of the EU, like France, have paid proportionally more via the EU than directly.
Yes, this point should be emphasized more. The aid the US gave Ukraine was the US government buying expensive things from US companies. The money stayed in the US, created US jobs and US economic growth.
There's various ways of tracking support and by many metrics there are European countries that have given more than the US once you account for population & GDP. It gets more complicated for EU members as the EU has given financial support, so the largest funders of the EU, like France, have paid proportionally more via the EU than directly.
https://www.ifw-kiel.de/topics/war-against-ukraine/ukraine-s... https://www.usnews.com/news/best-countries/articles/these-co...
Also worth remembering that 70% of that aid from the US never left the US and was spent on procuring weapons from the US.
https://econofact.org/factbrief/does-most-u-s-aid-to-ukraine...