I'm well informed on all of these but no, if we compare to other global power like US or Russia, or historically British, France, Spain, etc, China is 100% not an imperialist or colonialist, not by a large margin. Those issues are largely exaggerated by media and anyone had a decent exposure to history and international politics wouldn't say they are the same.
I disagree on China. What would you call China's behavior[1] in the South China Sea with regards to fishing vessels and other non-military boats?
[1] https://www.youtube.com/watch?v=hzZrcqf826E