Excessive sanctions long after the reason for them can have a detrimental long term outcome. I am with you to sanction hard while they occupy even one square inch and I emotionally want then to pay for long after but in the name of stability, that is not the best option.

The reality is that this conflict is only being driven by a relatively small number of people. Everyone else is along for the ride or being brainwashed. Punish those people for life but unfortunately that will never cover the economic cost much less that of life.