I know I wouldn't trust my government or politicians to do anything but enrich themselves at my expense, but I don't have to; my rights are guaranteed by our constitution.
@OP RE: Idealism
Do you really think a piece of paper protects you or anyone? Sure there's nominally some "belief in the rule of law" but all it takes is some "creative" interpretation of a document which was written by slave owners who left several intentional loopholes to get around that. The only thing materially restraining the state/capitalism from further trampling your so called rights is fear of reprisal by you. The constitution is one concession by the state, a pinky promise to generally not do these particular things insofar as you promise to be a good worker and not stir the pot too much. Did the constitution give women the right to vote? No. Did the constitution end slavery, and give reparations to those slaves? Nope. Will the constitution step in to stop the profiteering and uniquely evil US healthcare system that has killed and disabled members of my own family? Never.
So what does the constitution "do" in reality? Because from my perspective it might as well be joseph smith's golden tablets, which republicans occasionally use to scold democrats for not being American (tm) enough.
Liberalism is capitalist realism, and anti-communist. It's anti-democracy as well, so long as you define democracy as doing what the people want (That's clearly an impossible way to ride a bike!). Capitalism/liberalism calls itself democracy, but is really just profit seeking. Sometimes the highest expected profits come from doing what people want, just as often it comes from creating toll booths between people and readily available resources so you can extract a profit (enclosure).