It takes a lot more integrity, character, and courage to be a conservative than it does to be a liberal. That's because at its most basic level, liberalism is nothing more than childlike emotionalism applied to adult issues.
Going to war is mean, so we shouldn't do it. That person is poor and it would be nice to give him money, so the government should do it. Somebody wants to have an abortion, have a gay marriage, or wants to come into the U.S. illegally and it would be mean to say, "no," so we should let them. I am nice because I care about global warming! Those people want to kill us? But, don't they know we're nice? If they did, they would like us! Bill has more
toys, money than Harry, so take half of Bill's money and give it to Harry.
The only exception to this rule is for people who aren't liberals. They're racists, bigots, homophobes, Nazis, fascists, etc., etc., etc. They might as well just say that conservatives have "cooties" for disagreeing with them, because there really isn't any more thought or reasoning that goes into it than that.
Now, that's not to say that conservatives never make emotion based arguments or that emotion based arguments are always wrong. But, when you try to deal with complex, real world issues, using little more than simplistic emotionalism that's primarily designed to make the people advocating it feel good rather than to deal with problems, it can, and often has had disastrous consequences. Liberals never seem to learn from this.
Why don't they learn anything from failed liberal policies? Because there is nothing underpinning them other than feelings and so even when they don't work, their good intentions are treated, by other liberals at least, as more important than the results of their actions.
Just to name one example of many, look at Vietnam. South Vietnam was policing its own country and holding off aggression from the North with the help of the United States. But, people get hurt in wars, so wars are bad. As a result of thinking that went no deeper than that, liberals in Congress cut off the aid and air support we promised the South Vietnamese. The result?
The conquest of South Vietnam, a holocaust in Cambodia, millions dead and in prison camps, another million boat people, a crisis of confidence in America, and our country's reputation around the world was left in tatters, which led to a revolution in Nicaragua, the Soviet invasion of Afghanistan, and a lack of faith in the U.S. military which wasn't truly restored until Operation Desert Storm.