It’s not that people expect the dems to suddenly change things, it’s that the republicans would make things much worse, and any action that stands a chance at actually changing things is more likely to work if you don’t have fascists in charge. It’s doing the same thing over and over in the same way that treading water to not drown is doing the same thing over and over; It doesn’t solve your predicament, but it’s also not something you can afford to stop