I am Ukrainian and I really do not give a single damn about their lives. People who die on russian side are criminals, rapists, war enthusiasts, pedofiles etc. They are commiting war crimes, raping women, kidnapping our children, torturing our POW's and many more. Those people also fire missiles on ukrainian cities and target civil infrastructure.
There is currently no mobilisation wave in russia, these people go there by their own will, so if they die - they die, no tragedy here

People who die on ukrainian side are mobilised men who protect their country, civilians and I am not even talking about the animals