Sorry if my words are confusing you.
My point of argument is not that whether they are attractive or not, and for the record, I never once said that "the west are racist for not casting more attractive asian star", and by no means I slander Ken Jeong or Benedict Wong here (if this is what you're implying to me, then I apologize for the mis-word)...I just said that they should not be the representatives of how in general Asian men look, just like what I read once that in the west, most people there think that all asian men must be looking like them (But again like I stated in my post, i dont mean to take what I said as a fact, this is just an observation I seen from both in real life and social media, and I just think that Hollywood media perhaps has played no small part of why people think asian men are not attractive to them, and embarrasingly to say it quite bothers me a bit lol)
Slander Ken Jeong all you like. He's a POS. That's not my point. Neither man represents what the "west" thinks "all Asian men look like". And I'm legit confused where you got this from.
Moreover, perhaps you don't think you're insulting them but you are basically calling them ugly and bad representation of Asian men to the point that they turn people in the west off of Asian people. Which is... a lot.
I the west, plenty of men, women, or enby, who find Asian men attractive. And this is where the racism come in. And hey, I'm the first to say the west is massively racist. But taking social media (a notoriously racist place) and personal anecdotes of people being racist doesn't really tell the full picture. K-pop, like you mentioned, isn't massive over here because most people think all Asian men look like Ken Jeong.
But for the sake of argument, even taking names you mentioned like Bruce Lee, Jet Li, Jackie Chan, etc...I'd argue that even most of Hollywood executives or writers are not considering them as attractive enough to be the love interest for their female co-stars in their movies.
This is a totally different argument.
A) Hollywood doesn't cast enough conventionally attractive Asian men which bother Asian countries.
is not the same as,
B) Hollywood execs think conventionally attractive Asian men aren't attractive enough.
For example, I read Romeo Must Die BTS that the producers and director said they felt the audiences would not be comfortable of seeing Jet Li kissing Aaliyah, or the fiasco during the Crazy Rich Asians controversy with their screenwriter and also that they cast a half white half chinese as the lead (who I believe is supposed to be a pure chinese in the movie)...at best, those actors are known for the type casting roles as the master of kungfu and martial arts and rarely as anything other than that. But then I see a few of their non-Hollywood filmography, we see Jackie Chan was once be paired with one of the most prettiest and hottest South Korean pop star at the time...Jet Li and Chow Yun Fat with so many 90s Hong Kong most beautiful stars, Tony Leung even had this iconic and legendary sex scenes in Lust Caution, and Sanada Hiroyuki was not playing yakuza or samurai when he was not involved with Hollywood.
Okay I'm going to avoid the idea of "purity" here for a second. Because as a mixed race person myself, I really don't like such language.
I understand the issue with Hollywood and racism when it comes to interracial couples. It is thankfully gotten better, but clearly not great. But I'm confused by the rest of your point.
I was speaking on the representation of Asian men in Hollywood based on their general attractiveness. You can say they were/are type cast (they are) but how does that change the point that they'd be more representative of what westerns think Asian men look like then Ken Jeong or Benedict Wong? And if they were all paired with attractive women in their Asia based movies, wouldn't that just reinforce that American weren't just casting conventionally unattractive Asian men in roles?
Also going to be pedantic, because I'm a big Sanada fans. His big break into Hollywood came in 2003 with the Last Samurai. In 2002, in Japan, he had two films come out where he was the lead.
Vengeance for Sale, where he plays a Yakuza member. The other was
Twilight Samurai. As a teen he appeared in 13 episodes of The Yagyu Conspiracy. He also appeared in multiple seasons of Sonny Chiba's Shadow Warriors. Not necessarily as a samurai/ninja, but his involvement with samurai/gangster material started before he ever got to Hollywood.
with chinese beauty standard, I obviously can't speak on behalf of them but what I can say that the Asian beauty standard (especially East Asian) in general are similar to each other...thats why K-Pop, J-Pop, C-Pop (and now Thai Pop is starting to boom as well), up to the J-Dramas, K-Dramas, C-Dramas, and to their respective celebritites and stars, were huge and in such harmony with each countries and its fans....and not quite related but this is I just knew recently that not only K-Pop, but it turns out J-Pop is quite huge too in the US (to my surprise haha)...most notably that idol groups like AKB48, Yoasobi, Baby Metal, and Nogizaka 46 (my favorite

) had fanbases in the states.
Anyway, sorry for the lengthy response
My commentary on Chinese beauty standards were more the horrific nature of them, similar to the west, especially the US.