Change can happen but it’s going to take the convincing a whole hell of a lot of people to make it happen.
Change can happen, but the people who have all the wealth and power will absolutely not ever allow you to vote it away. Change will require sacrifice, and nobody who believes that they can vote their way out of the mess their grandparents voted them into will be willing to do what’s necessary.
I say again: I have been a party insider. I can tell you authoritatively that the DNC exists to suppress revolt by giving people like you faith in the system, and by capturing and neutering any social movement that might build enough momentum to get people to be willing to resist in any meaningful ways. You have no reason to believe that, of course, but it’s true nevertheless. So I encourage you: be the change you think you can make in the world. Start volunteer for complains. Bust your ass for a decade trying to move the party left. It’s the thing that finally made me see how worthless the Democrats actually are, so.i now encourage everyone making the arguments you’re making to try it themselves. It’ll be the only way you’ll ever learn the truth in a way you’ll believe.