I don't know whether this has been covered elsewhere or even if it is total nonsense, but it seems to me that this war is unlawful in terms of international law and was actioned contrary to the constitution of the USA since it wasn't sanctioned by Congress. So responsibility lies fairly and squarely on President Trump's shoulders.
Millions, if not billions, of people across the World are suffering because of this action. Obviously the people suffering most are those in the Middle East, particularly Iran and Lebanon and we can only pray and express sympathy for those people because our politicians will simply follow their own agendas.
However, the rest of us will suffer financially as a direct consequence of these actions. (apart from, as seen above, a few, already very wealthy, individuals who can buy low and sell high).
Now President Trump is sueing the BBC for an injudicial edit in a broadcast, so why can't there be a class action against President Trump to recover the financial losses and hardship that ordinary folk are suffering because of his actions?