I don't think that's what's being alleged, and I don't think the list was intended to be used as a comprehensive and rote "checklist". I think it's more the case that if you're an adult, the more and more you diverge from this set of "ideals", the more at risk you become of being judged as "inferior" or "un-American".
And again, the main argument isn't that "all white people are like this", "have to be like this", "shouldn't be like this", or whatever other bizarre narratives that people are concocting in order to prove it "wrong". The argument is that taken together these collective generalized ideals which are very often promoted, essentially, as the "correct way to American", are based primary on white European cultural norms. That's not to say that individual minorities "never have any of these attributes", or "shouldn't have these attributes", or that people of other countries and cultures don't have some of them too. It IS to say that minority groups in their own cultural values and priorities can and sometimes do diverge substantially from this collective set of ideals, and are often pressured to change and conform more closely to it in order to alleviate the risk of being "un-American" or "failing to assimilate". These folks are pressured to be "more American" rhetorically, but in practical terms they're being pressured to be "more like white people".