Assuming everything you say could be proved to be true, and I don't really have reason to believe they wouldn't, the situation the Dems find themselves in is even more maddening.
1. Their candidate Methuselah is someone who has aged out of being able to campaign much less be a defender of democracy against a would-be despot
2. The least invasive alternative would be to replace him with the young VP, but they are an unviable candidate because they are a social experiment
3. There are other bright young stars in the party that would be viable candidates, but they cannot be considered because that will piss off the people who wanted the social experiment as VP
4. There is no coherent strategy and there are no contingencies. We are just asked to remain calm, give them a vote and enjoy the band as democracy capsizes.
5. When voters register their alarm, democrats call them morons and idiots for daring to wonder WTF is going on and not just voting mindlessly
None of those are the fault of Trump, the GOP, Fox News, Russia, CNN or dumb voters. Those are all damming self-owns by the Democratic party and their constituents. The only bright side I see at this point with what is looking like an increasingly likely Trump victory is that the leadership if not the whole of the Democratic party goes away. Adios, motherfuckers. Then hopefully something less impotently shitty can replace them/it.