The West (leaders) have an unfounded fear that if Ukraine or parts of it should fall into Russian occupation permanently (which has pretty much happened already) there will be some threat that Russia will continue beyond Ukraine, its completely obvious Russia neither has the resources or military skill to do that, they're incompetent and exhausted militarily speaking, personally I think the West should tone it down, time to look after our own, when Russia turns off the gas as will happen at some point the West will be at their mercy and the Western populous will finally see sense and turn against their corrupt leaders. Maybe, probably unlikely but that's what needs to happen. The US will continue funding (at least until Trump gets in anyway) as it's costing them pennies to run down Russian military resources.