It's not appeasing aggression and murderous ways. I am simply apportioning blame for the current situation squarely on the shoulders of Donald Trump. As I said previously, imo the US leaving JCPOA in 2018 is the underlying reason why we are in the position we now find ourselves. There is no doubt that Iran's position hardened after the dissolution of JCPOA. Whether this would have been inevitable even if JCPOA was in operation is obviously unknown, but if it had then early action - up to and including military intervention - would have been justified and may well have had the support of Russia and China as signatories to JCPOA. The answer to how it got to this stage - i.e. an authoritarian fundamentalist government grabbing power - had little to do with leftists appeasing terror and much to do with US and UK interference; something that is true of the wider region. Perhaps history will be kind to Trump and conclude that he had no choice but to act now, and his actions in Iran ultimately benefitted the world. However, at this moment in time he certainly doesn't hold the moral high ground.