The problem is: Bernie can hammer all he want, but there is no platform to reach the voters. That is __the problem__ for the Dems.
1. The big media is in the hands of a select few (tech) oligarchs. Look for the accelerationists there.
2. Take notice of what happened at the WaPo. Bezos fell on his knees for Trump, fearful of having his other business interests been killed.
2. I mean: no reasonable platforms. The false balance in the New York Times is below the most horrible standard you can get in journalism. New York Times Pitchbot exists for a reason.
3. In the US the press is allowed to spread fake news. Some media make a living of it. Others (see 2) try to give a neutral impression by presenting false balance
4. The serious, damaging analysis will get moved below the fold, if there is one.
==> Now you have gotten a system where the populace doesn´t even get informed anymore, so no serious debate is possible.
==> The Dems are not even able to have their own policies, they have to lean deeply right to stay not too much out of touch of what is presented as normal discourse in the media.
If the US slips further from Anocracy to Autocracy, it will be 1) because the press gave the autocrats the nod and 2) some powerful captains of industry were on board, 3) and they were helped by radicalized far right christianity (Heritage Foundation et ali.).
An echo of Weimar.