Then if you get a half Chinese actor to play Shang Chi it doesn't really matter because the character is Chinese yes but the actor is Chinese just not full Chinese but it would be believable nonetheless because that actor in question has at least one Chinese parent; like does it really have to come down to being a full-bred Chinese?
Max Huang
Lewis Tan
Jon Foo
All Chinese or half Chinese actors who are biracial but who can still pull off the role
Or if you want a full on Chinese actor to play Shang Chi then:
Ashton Chen
Daniel Wu
Wallace Huo
Harry Shum Jr
Ludi Lin
Wesley Wong
Godfrey Gao
Kris Wu
Max Huang
Lewis Tan
Jon Foo
All Chinese or half Chinese actors who are biracial but who can still pull off the role
Or if you want a full on Chinese actor to play Shang Chi then:
Ashton Chen
Daniel Wu
Wallace Huo
Harry Shum Jr
Ludi Lin
Wesley Wong
Godfrey Gao
Kris Wu