The reason Europeans don't like Trumps peace proposals is not that because we don't want peace, we all do, this war hurts us all.
The reason is that we don't trust Trump and we most definitely do not trust Putin.
The Russians are showing signs of cracking now, they have run out of soldiers at the front, Ukraine has started to push and at the same time Trump stop all the support for Ukraine, just when the Russians really need him to do that he does it. It's just super obvious Trump is a Kremlin asset that does what he can to aid their war effort. We are for sure going to see sanctions being lifted on the Russians next. The tariff war against his own allies that also support Ukraine is another thing Putin really really needs.
His peace deal also really favours the Russians, giving them what they want and need right now. And that's the second problem, that we don't trust Putin. He has been lying constantly since he took power in Russia. About Ukraine they constantly lied about not wanting to invade, even the very hours before they did, what Putin says can't be trusted, whatsoever. Any peace deal they sign will be used to rearm and reposition and then they're going to be at it again, they won't we happy until they have conquered Ukraine and then they will find new targets. The only thing currently preventing the Russians from invading Georgia, Moldova and seizing direct control over Kazackstan and Belarus is the war in Ukraine.
And Putins word on peace can't be trusted either. There have been many ceasefires during the war and every single time the Russians have broken them, they just used it to reposition themselves and then resumed firing on the Ukrainians. Making peace with them is like making peace with Hamas, it doesn't work, they just abuse it to get into a more favourable position.
This war would end if the Russians knew they couldn't win. If the west said "We're going to give the Ukrainians whatever they need" and then did that the Russians would have no chance, the only reason it has gone this good for them is beacuse Ukraine had been forced to fight with one hand tied behind their backs, always much less shells and ammunition, heavily restricted on how they could use their given weapons. The russians have waited it out, betting on the resolve of the west being weak, and they were right.
Now they have their man in the oval office and Ukraine's greatest support is gone, just in time for the russian war effort to be saved.