How many times do you guys want to use the same already disproven logic?
You also said China and Russia would help Iran to fight the US because of similar interests. Guess what? None of them has done anything for Iran so far. China even reduced her oil imports by 40% to 50%, stabilizing the oil market and preventing Iran from exerting pressure on the US and Europe by targeting the global economy.
Now you want to make a similar bet on North Korea? lol Who is truly a joke of a country. North Korea is no match for South Korea. And the moment they use their nukes on South Korea, nothing but a vague memory will remain of North Korea.
Unlike Russia and China, the West actually defends their allies against regional adversaries. Ukraine has received over $300 billion in aid, approaching $400 billion. On the other hand, China is actively helping the US stabilize the world economy against Iran's interests and Russia considers Israel an almost Russian country.