It's not impossible. While of course seems very different now, Trump dropped a MOAB on Syria and assassinated Iranian generals during his first term.

The situation looks more grim of course but there is still a sliver of a chance it is very short term to bring about a desired result.

Keeping up the pressure to let him know the response from his base is overwhelmingly negative with regards to a conflict with Iran is the only thing that could move the needle. Dooming and glooming while this is far from over and decided does not help anyone.

Not directing that at you, just have seen a lot of it around.

EDIT: about an hour ago, Lindsay Graham was urging Trump to "be all in to help Israel." I really think, despite how bad it looks, that this is far from decided. The only person who knows what Trump will do at this point is Trump himself.