The US is in fact increasing support right now. Trump lost his patience with Putin.

You also underestimate the Chinese support. The war would have been over in 2023 if it wasn't for China.

> The discovery of a Russian decoy drone made up entirely of Chinese parts is another indication of the growing wartime relationship between Moscow and Beijing. ... Beyond components, China appears to have provided Russia with at least some complete weapons systems. In May, we reported that Russia was using a new Chinese laser system to shoot down Ukrainian drones. https://www.twz.com/news-features/new-russian-drone-made-com...