Um, this very action is largely the history of the world as we know it. Probably in your next breath, you would tell us that targeting leaders is a war crime. So, by your logic, nobody can do anything about anything. Yet, as history shows, it is being done all the time.
Jerusalem light rail conductors striking over new train schedule (Haaretz)
from the article: PA court: Sale of Palestinian land to Israelis is punishable by death