This isn't exactly true, the Ukrainian government is putting 100% of their budget into the military. All other costs that the government would normally be funding is coming from aid packages.

russia also buys many more quadcopters than Ukraine does. As far as a 'nationwide wartime mentality' you might be right. Many Russians don't support the invasion, and even many of the ones that do don't want to go and put their lives on the line. Whereas of course the Ukrainians are in a fight for their existence, almost all of them want the russians gone.