Russia has horrible demographics already now and this is the last time when there are at least somehow available men for a large war. Add the numbers of men who fled the country and calculate the missing children which will be never born. Russia will face another generation of lonely women (within 100 years) who have no chance to find a husband which would father kids.
This is battlefield at Bachmut reminding us of WW1 massacres. Putin destroyed Russia's future for another 50-100 years.
See the surplus of women already now and declining numbers of Russian population.
