If not for the atomic bomb, would the US have defeated Japan?

US should think about this before trying to fight against China or Russia. Firstly, I find it ironic how the US media is talking about all the young men who left Russia to avoid mobilization when in fact half of Americans say they would either leave the country or not fight if the US was invaded. China has 1.3 billion people and yes, they have nukes too. The US couldn't even defeat the Taliban in Afghanistan. Lost to the Vietnamese. There's no way we could even defeat China. I doubt we could defeat Russia. American men are too busy wearing makeup and making silly TikTok videos. They're not ready for war.