so your alternative of inaction involves a likely outcome of raping and murdering thousands of civilians in the name of peace for thousands of soldiers.
the us can do plenty of things without spending billions of dollars that are short of this, and yes, i have personally donated to the Ukrainian effort.
An obvious alternative is to increase support to Ukraine to give them what they need to expel Russia. The good old USA has the resources to do that but Republicans have blocked increasing aid at the orders of Donald Trump for years now. And now that he is in power he is finally blocking it altogether.
And you, too, have failed to present one. Is funding a never-ending stalemate indefinitely the only option?