I think there will be a point where the Verdun that is Bakhmut will mean that it actually becomes a Verdun as in metaphor for the entire resilience of the nation. This was where Petain made his name in WWI. Then he became a turncoat Nazi symp for the Vichy government.
I think it was bleeding 7-1 Russian dead to Ukrainian dead for a while. That probably can't go on forever.