We can agree that starting a war with Iran is sort of the magnum opus of the worst administration in American history.
But I do feel obligated to interrogate the idea that the US is responsible for this escalation. Iran is seeking to expand its power and influence in the region, and employs violent means upon people - even its own people - to achieve these goals. The regime is, fundamentally, amoral.
The US gets to decide if it wants to put a stop to that. But left alone, the world gets more dangerous the stronger the Iranian regime becomes. The same cannot be said about the United States. The period of history belonging to the unipolar US liberal order was probably the most prosperous and peaceful time in history.
Unipolar being the key here. The world will get more dangerous with a stronger US in the current multipolar world.