What if China takes over the world? What if a ton of countries that act this way start appearing and people in our country start using them as examples to follo

What if China takes over the world? What if a ton of countries that act this way start appearing and people in our country start using them as examples to follow. I feel like these things are already happening, that's why I care. When parts of the world get worse off, it eventually will get worse for all of us.