They can't deal with Hamas at all even while besieging Gaza
The claims of Hamas and Iran about them having the capacity to sustain a long war is getting more true day by day
I don't know if HZ itself has access to its ballistic missile arsenal or not, but Israel would face severe retaliations in abwar with HZ compared to Hamas, their Apaches will not be as free as in Gaza and there are chances we could see Israeli fighters downed for the first time since 2018
Israel "wars" consists of carpet bombing civilians and call it a victory, they can't put tanks on trailer and send armored vehicle without any infantry support, retreats and embarass themselves by falsely claiming securing of zones inside Gaza while Hamas launches rockets from that very same "safe zone"
There are no chance Iran would have to get involved, HZ has 100x better weapons to retaliate than Hamas and air defenses
While i advocate against any war, if Israel starts carpet bombing Lebanon, Israeli citizens should also be under the danger of fire, their lives aren't worth more than Lebanese lives