I have no problem with an Asian cast as Goku to be honest
i think Jon Foo looks just like Goku, but can he speak good fluent English? looking like him is one thing, but I want to be able to understand the guy, this is an American film, Tony Jaa is a talented martial artist, but can he speak good fluent English? how is his acting, he barely had dialogue in the protector. We have to realize that this movie, just like most movie are, is here to make money, not just please fans, and to be honest, a white lead>asian lead in American any time, it's just the flat truth, you can't change that, unless you change all 100 billion of the people's minds here in the U.S.