score:6
I'm not quite sure how to answer your first question; the syntax is very difficult, and I have no idea how to measure how many people did not oppose a measure. What I can provide is a single point in time figure for how many supported the bill. I have no way to know how many of the remaining 32% opposed the bill, how many didn't care, and how many were unaware of the bill. I'm sure that somewhere there are opinion polls that would separate the answer by race.
Your second question would require a book to answer. (The FAQ discourages book length answers).