On the other hand Russia has never been more in China's camp than it is now, and I think that loss is far greater than the possible gain of Ukraine and the NATO expansion.
> After the second world war, Japan, Germany, South Korea and Taiwan have become friends.
Yes, over that period, but that is no longer happening. Power is shifting to other countries - China, India, etc. and they are not "friends". Quotes because I think the idea of friendship in international relations is mistaken.
> and maybe India one day?
India has very different values and interests to the west, and while it is likely to ally with the west against China, I cannot see it in anything else. It is not backing the west over Ukraine, for example.