I think you are only bringing up names that do action choreographed films. And I thought it was a lie that sagal was part asian…along with many lies he told. But I think the successful ones are the ones that actually are good at their craft and put in work. Bruce was legit, Donnie Yen (IP man, Rogue one) is legit, jet li is good, Daniel Wu (who is doing a cool series of bringing HK style choreographed fights scenes into a western TV show into the badlands even said himself that the whole team puts in months of training to do the scenes. And they even decided to cast him as the main character when they couldn’t find anyone that was as good) Even Jackie Chan is actually a legit martial artist but he made it into a joke sadly. I don’t think if they are mixed or white, I think the ones that are successful are actually good at what they do.
Plenty of asian actors in regular roles now, more and more. Steven Yuen from the walking dead was a fan favorite, sadly I heard he can’t get a role right now even though he was so good. So there are cases where I think an Asian actor is good and hollywood just don’t write roles for them. Daniel dae Kim from lost was good and found a nice role after lost. Another good actor is Daniel Henney, half Korean and white. He was in the wolverine and if I may say so really good looking but havent seen much of him. He even learned Korean to do a really good Korean film, and looks full Korean and not really mixed. I think the there are talented Asian actors, but unfortunatly they don’t write many roles for them besides the stereotypical roles. But when they do, many seem to shine like Steven Yuen.