I've not seen it broken down by state before (but will check it out at some point). From what I've seen it's more that education doesn't stop people from holding false beliefs about vaccination. It's like intelligence in that respect you can have a high IQ but that doesn't make you better able to spot bullshit. Also yes, rumours are sticky, people do like to double down if they don't like/respect the source that is debunking it .
RE: Finish the following sentence: The MMR vaccine causes [BLANK]