I don't think this take is fully thought out.

Their system is monumentally slow.

For important decisions, they need a super majority in the senate and a majority in the house, and the presidency, and then they need to word it extremely carefully to not have it monkeys paw'd by the supreme Court.

They haven't had an actionable super majority for over a quarter century.

The reason they appear not to do much is because without bipartisan support or all the things I just mentioned they can basically only change how money is spent and taxes (only sorta IIRC).

Basically, your comment hurts everyone by encouraging voter apathy due to pushing ideas that aren't compatible with the reality of their slow system.

Is the DNC filled with center right people who love a lot of the bad things in place? Yes.

Are there still absolutely positive changes they would make given the opportunity? Also yes.

Is it possible to change the party through primaries and local politics? Also yes.

Anyhow, my point is, it needs to be considered the system they're working in before loose accusations are thrown at them.

Finally, we here in Canada could literally have proportional representation right now, giving everyone's vote equal weighting and giving us true choice and increased leverage over politicians, but we don't, despite having a majority liberal government and so what I am saying, is having the supposed left leaning party win (or in their case less right), still doesn't garunteed results, but it does garunteed you won't ramp up the very real discrimination and crony corruption like you see when right wing governments win.

It matters, even if choices are mid is the point.