I gather you are another of the 30% or so that were convinced. After 56 years, surely your group must be frustrated to be still in the minority. After all the forum postings, TV specials, books, seems people are pretty much stuck in their ways.
If 99% of the public believed that Oswald alone killed JFK, that he had no help, would you change your opinion on the matter?
Or to put it differently: how does 99% of the public believing in a conspiracy OR believing in a lone assassination alter the facts or evidence in the event? What does public opinion have to do with what actually happened?