This ideal seems like it works, up until you see the actual actions and effects of conservative parties within politics. Then you realise that actually, only a minority have that position, the vast majority of conservative parties are authoritarian and LOVE sticking their hands in peoples' business.
Whether the ideal works and the extent to which it's commonly held are two different issues. My view is that both major parties in the US are somewhat illiberal, but average out to a moderately liberal status quo.
Despite many flaws, e.g. the Wars on Drugs and Prostitutes, the US is arguably still the world's greatest stronghold of liberalism (for the moment).
The War on Drugs is actually a perfect microcosm of how illiberal policy doesn't work. Instead of learning our lesson from the War on Alcohol, we doubled down and funneled untold billions of dollars into Mexican drug cartels via US markets — funding the very problem we wanted to solve. By contrast, our more liberal tobacco policy has been a huge success.
