I believe there are two related criticisms that can be leveled at liberals: financially, liberals are willing to go into debt for reasons conservatives consider unacceptable (social welfare), and socially, liberals believe that the group should be responsible for the individual, rather than the other way around, such that an individual can be imposed upon for the benefit of other people.
I think these are perfectly legitimate concerns on their face. But conservatives have really fucked themselves by being total hypocrites on both issues. Financially, the right-wing party in the US has become MUCH spendier than liberals, only they are choosing to waste money on tax cuts for the rich, tax loopholes for corporations, and outrageously unnecessary defense spending. Socially, many right-wing policies infringe badly on individual liberties—consider the big two right now, gay marriage and abortion.