Angela Li and Vivrd Prasanna have achieved the pinnacle of a public university education — she a senior at UCLA, he a freshman at UC Berkeley. Both are children of immigrants, with Li’s parents from China and Prasanna’s from India. *** But when it comes to Proposition 16, the Tuesday ballot measure that would once again allow affirmative action in public education, contracting and hiring, the two UC students and their families sharply diverge. *** Their diverse views reflect the complexity of the affirmative action issue among Asian Americans, who represent more than 50 ethnic subgroups with varying politics, histories...