Well, many has dangarous level of delusions regards of USA power in this case.
I am sure it is quite obvious for the Iranian, Russians and Chinese the nature of problems that an USA controlled IRan means for the Russian backyard, and for the Kayakh/Ayer oil sources for China.
It means that if the USA try an attack on Iran, then the Russian/Chinese subs ,ships and sats will provide the targeting information for Iranian , or Allied sources missiles used by Iran to sink all available USA naval ships in 2000 km range.
And they will makes it sure it will be obvius for anyone BEFORE the first shot of USA.
There is a reason of the Chinese-Russian-Iranian wargames, and I am sure there are many things underneath the water that we can't see.
And I am sure about that China stuffing up with SAMs Iranian cities.
Additionaly, as soon as USA start to push the kurds against Iran thorught Azer and Armenia the Turks and Russians most probably will end the independent existence of those countries. Means it will snowball into a regianal war between USA-Iran -Russia-Azer-Armenia-Türks with the full support of China and NK . As a starter.
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And never forget - if the USA and Israel stoped the bombing of Iran after two seeks they did it becuase the Iranian won the war, if the Iranian lost then they still bombing them up to thid date , as they did it with Serbia .