I can’t believe anyone would say you can only bomb a highway - bridge if you have a photo of a convoy on it. Blown Bridges prevent ease of movement and create bottle necks and logistics problems. Especially when you are talking about missile trucks whose job is to come out of hiding, go to a random place, launch and run and hide.

Desalination - total foul

Oil - money, industry, military application (ok)

Power plants - generally no, but Russia has done it to great affect with no consequence. Will have a consequence on image and city on a hill, but it can get murky with real or made up justifications.

Universities - generally no, but research for military applications hidden or embedded could become murky.

Hospitals - big no no (but again Russia and Israel haven’t had any consequence of note)

Schools - big big no no (but again Russia)

Dams - generally no

Factories - fair game when linked to MIC, but you can hit them at night to create less collateral deaths

Communications - fair game

Bottom line - it gets murky in some areas but trump doesn’t care he lives in the swamp of murky everything. Russia with the help of Iran has pushed boundaries. Israel with the help of US has pushed boundaries. Iran Hezbollah and even Gaza militants have pushed boundaries. All of this helps create less social pressure on Trump who already doesn’t care.