This is how an occupying power would fight a war using a population they don't give a shit about, not how a nation run by people who cared about the population would.
Discussion
EXACTLY. You notice Russia is holding back. They are sending 5 TIMES fewer people per Capita so as to keep brain drain down.
Ukraine is fighting this war in a way that there'll be nothing left for them, even if they "win". Which is impossible anyways.