Just telling people the 'truth' isn't effective communication at all (in fact, it can be dangerous) - that should be obvious to anyone with some experience in life. To tell the 'truth' and then throw up your hands because it didn't work is just being at victim.
A major political party knows all that - it's shameful and corrupt that they don't care to be effective.
I don't expect the voters to love boring truths. But if they actively want to be lied to, and revel in getting away with lies, then democracy is not the tool for me.
There has to also be a competing vision.
The Democrats have been stuck in a "That's a lie!" + {crickets} rut for too long.
What is the competing vision? (And no, general platitudes about freedom, democracy, and apple pie aren't enough)
There are countless interviews with voters quoting the laughable and provably impossible promises/lies Trump spouted during the last campaign as their reason for voting for him.
If what you’re advocating is that the democrats need to embrace denying reality and lying to the public if they want to win, I can’t disagree with you. But I also think historians won’t have a tough time pointing to the end of the American experiment.