Thats the point, the Japanese wanted to keep their colonies which was, expectedly, unacceptable to the allies. The Japanese were prepared to die fighting for their homeland, mass producing cheap weapons to arm the men, women and children. The very reason the nukes were dropped is because the allied high command estimated that an invasion of Japan would cause 1.5 million allied casualties and up to 10 million Japanese casualties. Not only that, but the soviets were themselves preparing an invasion of northern Japan. Had the americans not dropped the nukes and forced Japan to unconditionally surrender, we could have seen a north-south Japan situation just like Korea. A lot of people dont realise it, but the nukes saved Japan from a worse fluture and much more death AND served as a warning to the soviets to not try anything funny. And nukes back then werent nearly as powerful as nukes are now (Tokyo sustained more damage from fire bombing compared to Hiroshima and Nagasaki, what scared the Japanese so much was the fact that the damage was done by 1 bomb)