Let the Democrat party die. We need a strong Labor party. Give it a different name, if desired, but we need a party that is unrelentingly for the people, not the corporations.
Such a party can only work if it has a hard rule forbidding corporate financial support in any form. As soon as corporate or billionaire money gets involved, it will revert instantly back to a neoliberal/conservative party.
It is not possible to have an honest political party that also accepts financial support from the oppressing class.