Asian people are not trying to be more "Western" by widening their eyes. This is a big misconception by a lot of people.
Double eyelids, or the wrinkle ontop of your eyes, are considered beautiful in many Asian countries. The main ideas of beauty in Eastern Asia is
1) Light skin
2) Large eyes and double eyelids
In Western countries like the US, the idea of Asian beauty involves slanted, small eyes and a sharp face with large cheekbones. It's quite the opposite in Asia.
Double eyelids are considered beautiful just because it's not something that every Asian person has. A lot do, but some don't.
When you get double eyelid surgery, it usually makes your eyes bigger because of the wrinkle that's created.
So don't say anything like "They wanna be more Western-looking" until you know the facts.
Plus, there are already tons of Asian people that naturally have large eyes and double eyelids. It's just that you don't see them everyday because of what the media portrays.
Here are just a few natural South Korean celebrities, just to show you what's considered beautiful in East Asian countries.
Gu Hyesun Song Hyegyo Kim Taehee