I think you hit the proverbial nail right on its head, so to speak. One of the Democrats on a particular forum is a woman who claims that she works for an epilepsy organization. The first thing she said was that RPI would prohibit her organization from compiling statistics to help "segments of the population." When I referred her to the RPI link and the clause exempting medical treatment, she claimed that the clause doesn't exempt her from collecting statistics to find out which "segments of the population" are "under-served". I suppose that means her organization receives funding according to the skincolor and facial features of its patients. What a hustle! (I could understand if epilepsy afflicted people with a particular ethnic/racial ancestry more than another, but even she says that it doesn't). I'm guessing that money is behind their opposition to it, too.
But when opponents continued to go over the top on the "medical exemptions" clause -- that clued me in fully. That they were attempting to set the stage for Hillary Care/Universal healthcare. They weren't worried about the medical exemption clause -- they refuse to in real time discuss it - Their fears, their worries. They are lobbying for a political agenda at the national level -- seemingly not very worried about scaring to death a gadzillion minorities in CA through their false claims -- INSPITE OF THE FACTUAL, WRITTEN WORD - the exemption clauses within Prop 54.