Neutralising Iran is part of Israels strategy of Isolating the Palestinians from outside support, this will make them more amenable to any solution the Israelis wish to impose on them.I think it’s deeper than that, Iran hates Israel with a vengeance, they’ve spent decades doing all they can to cause problems.
Iran certainly supports Palestinians, but it also supports and funds Hamas, Hezbollah and Houthis
Small nations fighting against larger and more powerful nations cannot hope to win without the support of other powerful nations.
Ukraine without European support has no chance, Vietnam without China and Russia, even the American war of independence needed French support to defeat the British.

