I think we agree that China took whatever it could to make itself powerful. But if you ask a Western person, is it really the power of our countries that defines greatness?
If I think of any country and what makes it great, I always end up thinking about things that definitely do not exist in China. I think the greatest moments of civilization are found in compassion, humanism, freedom, the fight for liberty, the preservation of peace, philosophy, art, music, poetry, scientific pursuit even against church&state etc.
China doesn't care about these things, at all, or is overtly hostile to them if they compromise efficiency.
China is not the first country to be very efficient while having concentration camps. People are afraid not because they don't respect China, nor because they think China is inferior.
We are concerned because we think China has NOT taken the best from the Western world. In fact, quite the opposite.