While I find it detestable to use the example previously discussed, I don't think it should be forgotten that people, in general, are persuadable. So whether or not a person has easy access to information (cable/internet) and might be ignorant of a candidate means people should want to calmly, politely tell people about other candidates they like (but do so like a dang human being obviously, not with belittling and shit).
I've converted a few family Trump votes to Sanders votes just by talking. The people who I talked to, for whatever reason, believed what I said and believed I was telling the truth. That's why they continued to open up their minds and learned more about the government outside of the right's media narrative.
So we should definitely keep sharing our opinions, but it's just unfortunate that I should have to qualify that with "in a peaceful, reasonable, human way."