“Hispanic” isn’t an ethnic category. There are Hispanics of mostly European descent, Hispanics of mainly African descent, etc. It’s a clumsy umbrella term, but is vaguely workable insofar as it gestures in the general direction of a set of nationalities with related cultures.

“Asian” is even worse since it refers to a group of people who share neither ethnicity nor culture. It’s a label that is workable only because these unrelated groups share some common experiences in America due to immigration patterns. Even there, though, Indian immigrants and Vietnamese refugees have little in common.