Despite the efforts of a small minority of graduate students at one university to unionize, the majority of graduate students there remain unaware of the attempt  Most of those who are aware believe that a union would not represent their interests or that, if it did, it would not effectively pursue them
Thus, the graduate students at the university should not unionize, since the majority of them obviously disapprove of the attempt
blurs the distinction between active disapproval and mere lack of approval