[warent]

In the same way that vaporizing vicious dictators--subtracting how many people they personally killed by their own hands--would have no detectable difference to global murder rate.

This specific idea of limiting CO2 is being taken a bit too out of context of the broader point. Sanctions against Russia hasn't stopped the murder, any more than limiting individual CO2 consumption would stop climate change. Yet both are correct actions because they are steps in the direction of fixing larger issues.

EDIT: clarify wording