China is only interested in itself and increasing its power in the world at any cost to others...
That sounds just like America from the time they began ousting Great Britain as the world's top dog.
So what if China is behaving exactly the same way as they gradually shove America out of the world's top dog spot?
And as for testing nuclear warheads and testing ballistic missiles.....the Americans gave the rest of the world the one-finger salute when they were doing just that while other people around the world protested about it, so why shouldn't North Korea or any other country follow the Americans' example?