You say that like it is a bad thing?
The last thing we want to become is America version 2.0... projecting its power all over the Earth, and meddling in everyone else's internal affairs.
China has always been an insular, inward-looking civilization... and I hope it stays that way. Nations should look after their own affairs.
It may be a bad thing, but being the worlds largest economy will warrant power projection from China. China will have to secure its business channels and resources if it wants to maintain the top position. I doubt China can do that without flexing its muscles, given that there will be other major players in the world, jostling for that limited space. China will be drawn into this power struggle whether it likes it or not.
I really respect your pacifist views and I hope that China of the future will be like you describe.