The idea goes something like this -- liberalism ignores facts, hates facts. Instead, it relies solely on emotional appeal. Logic and reason have no place (the use of logic and reason even has a new derogatory name now -- 'mansplaining"). Accordingly, liberal ideas fail in the face of facts, logic and reason. Their only response is emotional -- which is mostly name-calling. This is the root of why they call everyone they disagree with a Nazi. They have no rational response.
We just saw this with Hillary's campaign. Did she ever offer anything of substance? I say not. Her entire general campaign can be summed up with two words -- "Trump Bad." It's childlike, isn't it?
People, of course, get to believe whatever they want. The problem, in this context, is when they achieve political power. Then they affect the rest of us. That is when retarded liberal emotional development, which stops at the angry, spoiled children level, becomes a problem for everyone else. They wallow in rebelling against the normal responsibilities of adulthood. And then they demand a parental-type government to meet their needs -- cradle to grave.
But this ignores human nature. Liberals dismiss the ideas of free choice, of voluntary cooperation and of moral integrity. Perhaps worst of all, they do not allow for individual differences in talent, drive, personal appeal and work ethic. But human nature does not ignore these things. And it will always run counter to a Government that seeks to impose economic and social equality on its population. This type of system does not work over time. Never has. Enough citizens (the ones with talent, drive, personal appeal and work ethic) will not allow for it. They do not want to be wards of the state.