Now, I will assume you are just a misguided westerner who watches too much Fox news and indulge you:
> Ukraine is right on the russia's border.
So? How about US invading Mexico, occupying and annexing its lands, killing bunch of civilians while simultaneously demanding Mexico to "respect" US "sphere of influence", speak English, stop "threatening" it by committing to neutrality, etc.
> Their economies and cultures are intertwined.
Let them rape and indiscriminately kill bunch of civilians in some Bucha or other towns because of similar languages and economical ties? How does that make any sense to you? Also, claiming that Ukraine doesn't have its own historical roots and cultural identity is one of the Russian propaganda talking points.
> And their have been hostilities between the two
"Hostilities"? Excuse me? Russia occupied and annexed parts of Ukraine repeatedly but you dubbing it "hostilities" make it sound like some kind of a border skirmish where both parties are culpable which couldn't be further from the truth.
> since 2014 when the US formented a revolution there
Another Russian propaganda talking point. People were fed up with Yanukovich and decided to remove him from power. Support from US was inconsequential.
> I am not shilling for Russia
Yes you are! Openly and brazenly.
> peace agreement requires all parties to put everything on the table and deal openly
Well, yes, Russia would love Ukraine to put its lands "on the table", commit to neutrality, make Russian language the second national language and a lot more. And what exactly are the offering in return? To maybe stop attacking Ukraine for some time? Am I missing something?
> This could have happened.
It still can. Ukraine has been offering to solve the conflict through diplomacy as soon as Russia withdraw its forces. It is not like Ukraine is going to push into Russian territory to occupy Moscow and kill Putin. You understand that, do you?
Look, if you just prefer US to stop spending money on Ukraine you could just say so. Yes, this will lead to bunch of Ukrainians killed, raped or tortured in concentration (excuse me, "filtration"!) camps and you will feel somewhat bad for saying that, but at least it would be truthful. No need to play Tucker Carlson here with "border skirmishes" and "hostilities".