Never Casualty Averse

Those supporting Ukraine frequently mention the large number of Russian deaths in the war against Kyiv. They have to know and remember that in the World Wars Moscow's soldiers fell by the millions, stacked like cordwood across the Motherland. In the First World War, the Czar did not seem to care how many conscripted serfs died, and Stalin never was particularly troubled by widespread carnage in World War II or any other time in his evil reign. So suddenly Putin is going to be dismayed that his troops are being sacrificed? No, while Russian soldiers as individuals do not want to die, just like any sane person would not, their leaders have never cared.