The guy clearly is intelligent, but there’s one sentence that he probably knows is bull crap, which is that Israel did a ceasefire in Lebanon because it wants to focus on a full blown war with Iran. Chances are Israel probably wants to buddy up with Saudi Arabia and others against Iran, and while Gaza was already a sore spot, Lebanon was probably a big no no when it comes to establishing relations.
Iran is the primary arms supplier of Hezbollah. The Lebanon ceasefire almost certainly got signed off by Iran. They do not have full control over Hezbollah, but they have a large say.
I can’t imagine a full-scale war with Iran would end in Israeli victory. Iran’s population is 10 times that of Israel’s. It’s mountainous too. They don’t share a border. There’s no way Israel could do any sort of significant ground invasion even if the IDF wasn’t already stretched thin fighting on multiple fronts.
I’m not saying Iran would be the big “winner.” I’m saying no one would win. Both countries would probably just indiscriminately bomb the shit out of each other and everyone — especially civilians — would be worse off after.