I think liberals understand this, at some level, but they know they are powerless to do anything about it within the system they've built for themselves. They can't outright say this, or they would never be re-elected.

They have completely embraced neoliberal economic policies, and thus depend on corporate money and support. The only thing they can do is toss people a bone here and there, and implement slow policies that might help over time, but won't rock the boat now. Business do not like sudden changes, they want predictable stability as that's what their investments and forcasting is built on.

Conservatives are also in the pocket of corporations, but they simply have no problem lying to their voters. They will point the finger, blame the other, make outlandish claims, and purposefully mislead the public while having no intention of helping them. They just want to solidify their power and line their pockets. People fall for these lies because they're tired of the status quoe and any kind of major change sounds like a benifit. They're shooting themselves in the foot, but they don't know it yet.