The EU is screwed. Long term.
The US wins everything for a small cost. They don't care even if half of the Ukrainian population is killed, they absolutely don't care. The objective was to preoccupy Russia in a long insurgency. Although that backfired, Russian incompetence is at least ensuring they are bleeding in the process.
As for Ukraine, their birth rate had already plummeted from 520k in 2012 to 293k in 2021. With many people having left the country, most likely permanently, pop growth will be less than 200k births, possibly even 100k births after this war is over. And by the time Russia is done, they would have wiped out at least 5 years' worth of pop growth. Will be even worse if after Donbas they train their guns towards Kharkiv, Poltava and Odessa. If the Russians take even half the country, Ukraine's done. It will take them 50-100 years to fix everything, and that's extremely unlikely given the low pop growth.
The EU is definitely screwed, they lost their best source of energy almost permanently and the US has raised import barriers and cut the EU out of the best market. And we are yet to see the security implications of becoming enemies with Russia again.