That's why we have both sides in this country. Conservative/Liberal. Republican/Democrat. Not to sound too Zen like, but we need that balance. By the way, there used to be a time not long ago in this country when democrats weren't nessesarily liberals and republicans weren't nessesarily conservatives. Not sure why that has changed recently.
About liberals though, if you really want something to critisize - Boulder Colorado passed a law a couple years ago that required every light bulb in the city be replaced by a lower powered less bright bulb. The reason: the older brighter city lights were drownding out the night sky and obscuring the view of the stars. Granolas putting aside safety just to have a nice view of the southern stary sky. Yeah it's sad, but this is what liberal law makers waste their time doing, passing useless laws ,)