What does that have to do with Iran hitting desalination and civilian infrastructure?
I'm not sure you're coherently arguing here.
Either it's wrong for both parties or its not?
It is being threatened as a retaliation for hits against Iranian infrastructure:
Strikes on oil storage that we already know cause black oily rain to fall on their cities. The WHO has warned of the extreme health risks from it.
Strikes on power plants that would leave Iranians without electricity, and lighting.
The bombing of hospitals, medical centres, TV stations, and banks.
A US strike landing next their nuclear power plant.
Strikes on desalination plants, already carried out in the South.
Strikes on civilian tower blocks causing collapses, deaths, and mass casualties.
Strikes on schools, one of them with the catastrophic deaths of 170 young girls.
Where was your condemnation of all these acts when the US and Israel carried them out? Getting on a soapbox now is too late.
Iran has now adopted the 'eye-for-an-eye' policy. These attacks will be met in kind.
Iranian warnings have been sent to Gulf states to evacuate civilians from particular areas that US personnel are hiding in/operating from, shamefully using the local population as human shields.
Where is your condemnation of that? US rockets launcher systems operating right next to built up areas, in Bahrain for example?
These Gulf nations know full well that the US is launching attacks from their territory. They have to make the choice to tell the US military to quit operations and leave. Otherwise this war will not end well, their economies will be ruined for decades, and their people will be made to suffer in the same way as the Iranian population.
The Gulf states need to choose their path. If they all stand up to the US, it will be very hard for Trump to continue.