True, and I might add that "Asian," like "Hispanic" (and I'm Hispanic), is an almost meaningless catchall that its members don't identify with. The Hispanic world like the Anglosphere shares a language and religion (if you consider Protestantism generally as the Anglosphere's main faith) but is countries that don't necessarily like each other. (Slavs don't get along either: Yugoslavia in the '90s and the eastern Ukraine now, for example.) East Asians are at least as divided as Europeans; for example, the Chinese vs. the Japanese is sort of like the French vs. the Germans. More so since the languages are unrelated. (Japanese in Japan HATE other Asians.) I can't say if there's a generic "Asian" identity among third- and fourth-generation Asian-Americans (who speak only English and often intermarry with whites so they're half, etc.); my guess is no. (Too busy getting on with life, successfully, to feel sorry for themselves.) Anyway, idolizing race like this (identity politics, cultural Marxism) is really a power play by liberal whites vs. conservative ones. Lumping very different peoples together, as "Asian," for example ("you all look alike to me"), might give away the game that white lefties don't really care about these people, whom they're trying to make into mascots.
Reminds me: I read once that a trick of lazy TV writers is to make an East Asian character half of one ethnicity and half of another (Chinese-Japanese, etc.): "you all look alike to me" and it makes it easier for them, since they don't have to learn about a culture well enough to write the character. Probably not done now since chances are the character is American-born so, for all purposes on the show, is just like white Americans.
By the way, I just rediscovered this clip of Andrea Martin on "SCTV" as Perini Scleroso. I think it's cute: obviously she's supposed to be an older Catholic southern or Eastern European immigrant like you might have met 60 years ago (World War II refugees I used to know). Not offensive like Andy Kaufman's Foreign Man character he used on "Taxi." (American Jews have a tradition of making fun of their Slavic rulers from home; they invented Polack jokes.) The joke's not on such but rather: "What English Sounds Like to People Who Don't Understand It." Mocking other languages, in reverse: joke's on us. By the way, Martin is 100% Armenian.