I agree with you that there are certain issues that will require long incremental complex change that is hard to sell to a populace addicted to short simple sound bites. I also believe there are a lot of issues that can be implemented in a congressional term that can be summarized easily, but dems refuse to do them because it would require large systemic change that there donors don't want. Messages like Medicare for all, free childcare, student loan forgiveness all funded by a wealth tax on billionaires. This is a very popular, simple message you can give to the masses while at the same time laying out those long term complex technocratic plans for those who care.

The dems are only giving those technocratic plans though, and it shows as less and less non-college educated people are voting democrat. We can say theyre just stupid sheep but those sheep are a majority of the population and if we don't cater to them, we'll never win another election.