There's a very large Vietnamese population in Houston. Probably other cities.
[0]: https://en.wikipedia.org/wiki/List_of_U.S._cities_with_large...
But, in the very specific context of what I was saying regarding university admissions in 2017, I don't think there was a lot that a Taiwanese-American person could do to distinguish themselves from being labeled or otherwise considered Chinese-American.
Average household income, Chinese American, excluding Taiwanese, 2018: $91,944
https://en.wikipedia.org/wiki/List_of_ethnic_groups_in_the_U...
People immigrate for different reasons at different times. The causes combine with changing US immigration policies and the dynamics of preferential attachment to diaspora clusters to create distinct cohorts that have similar socioeconomic outcomes.
Note that Vietnamese here is good, because in other situations, it ain't good. The college admissions context is a confounder that flips the desirability of being a particular ethnicity.
Chinese Americans: 2.5M[2]
It's almost double, but is it really on a rare pokemon level?
1 - https://www.migrationpolicy.org/article/vietnamese-immigrant...
2 - https://www.migrationpolicy.org/article/chinese-immigrants-u...
My guess is there's much more ethnically Chinese applicants (which includes international students).