Word of mouth, internet, and social media cannot compete with ride to the polls and targeted message GOTV. The latter activities cost money and they will be used heavily by the Republicans.
If Bernie accepts federal funding then he is limited by law in how much he can spend. He will be conceding the money race to the Republicans.
Bernie is going to have to spend a billion dollars to defeat the GOP propaganda machine. You complain about Bernie's message being drowned out now, what do you think is going to happen when 24/7 Bernie is a communist radio, tv, and youtube ads start.
Trump aint got to do shyt
Bernie and Trump are two sides of the same coin. They are a cry for help from white people who are starting the realize that the ideas of going to school, showing up on time, and playing by the rules are nothing more than shibboleth. In a 21st century global market doing this is not enough to get or keep you in the middle class. One group wants to politically punish the group that they feel is responsible for the decline in their fortunes. The other wants to financially neuter those responsible.