Thats where you're wrong johnnyboy. You break iran and your trading in oil sans US dollars collapses and then russia will be under Trumps thumb bec you cannot move US dollars without the yankees allowing it.
Russia and China is way more preferable to US because they wont bomb countries indiscriminately for politics.
What the world will be like if the Chinese or Russian becomes number 1. You never know. But looking at the records of the Chinese driving its workers to work non-stop, I have my reservations about them. In the past they never expand into other countries doesn't mean they will not in the future. Russia is unlikely to be number 1 economically.
can Iran accept being govern by USA, being kick left right center everyday. There might be thousand of American body bags, can Iran stomach millions of its people humiliated?