Your argument doesn’t make sense, the casualties on the russian side were massive before capture even came into the picture.

The argument you should have gone with is that russia was starved of materials from Barbarossa, especially artillery so russia had to rely on brutally inefficient infantry tactics in the absence of proper combined arms support but even that doesn’t explain the casualness towards throwing away human lives the russian military had/has.

Yes the meatwave tropes are reductive but the reality is russia is attrocious at war and that hasn’t really changed.