Chinese people also feel threatened by the West, because they don't trust you. There's not much more to it. They fear that you might abuse your power or use it to destabilize China. There's a lot of hatred of China, and they don't want you to try and trample Chinese norms, culture, society... things which they care about and are deeply connected to.
That's not to say the West actually would do any of those things, the key point is the lack of trust, specifically trust that you would do anything to benefit Chinese people or protect Chinese or that you care about them at all. They don't trust you, and the specifics of what you could do to hurt them are not really something they consider (but as you, the West is already powerful, you have many more options... to the point where one day maybe be the Chinese are dwarfed again by the West, and have no ability to defend themselves should they have to.) The west is very scary to Chinese people.
See how this goes?