The image of democrats as poor little confused fellas is DNC-manufactured. The finances of big-shot Dems and the goals of their top-dollar donors have been anything but “failing spectacularly and repeatedly”. The dems have been wildly successful at their goal of keeping the left from any semblance of real power beyond the local level. The reason they keep failing to enact progressive policies even when they have a supermajority is because progressive policies are what they’re there to prevent.