So it's a lot easier for right-wing purchased media and social media and purchased think tanks (Cato/Koch) and foundations (Bradley, DeVos) and right-wing news outlets to spread propaganda. Because they have more money to spend.
So I think rightfully, people feel that the bigger threat is from the right. It's not a coincidence that CA was heavily funded by a GOP billionaire who wants to damage gov't services to cut his own taxes (Mercer is in an $8B dispute with the IRS).
I think the real problem is what Zeynep Tufeksi has been writing about: informed consent. Even if some tiny print says it's ok in a click-contract where they have a majority of the negotiating power, Facebook is releasing data on its uses without their informed consent. That's what we as a society need to re-evaluate.