I consider myself a liberal. Conservatives throw a lot of criticism at liberals. Some of that criticism does reasonably apply to some things liberals do. It probably works the same turned around the other way.
It seems to me that most of the criticism applies accurately not to the philosophy, but rather to the individual excesses of the group. To pick on liberals, we might consider “political correctness”. The liberal philosophy says that we should respect people. That’s hard to argue against. But human beings aren’t perfect — they can take the principle of respect and turn it into an extreme form, assuming that everyone is “thin skinned”, denying a sense of humor to other people, and suggesting that laughing at ones self is a bad thing. When political correctness gets out of hand, it turns in to censorship and an attack on free speech — a very NON LIBERAL thing to happen.
All that to say that sometimes liberals are silly. And just as liberals are sometimes silly, conservatives can get mean–while neither silliness nor meanness has anything to do with conservatism or liberalism.
And the conclusion is that we should all listen to each other, keeping in mind that we’re not all wise, smart, or on our best behavior.