Islam and Liberal Principles

Bill Maher is a self-declared liberal who has the courage and sense to condemn Islam's brutality against women. And Mr. Maher gets the same response from liberals that I get. He is called a bigot. But, look at what Islam does to liberal principles. I used Wikipedia to get this list:

Freedom of speech: Sharia does not allow anybody to say anything negative about Mohammed and Allah.

Freedom of press: Mohammed cartoons.

Freedom of religion: An apostate from Islam can be killed. Even an atheist wants people to be free to choose what they believe.

Civil rights: all non-Muslims are Kafirs, who are third-class subjects under Sharia law.

Democratic society: A Kafir does not have the same rights as a Muslim under Islam.

Secular governments: Secular is not Sharia. The Islamic government is a theocracy.

Why do liberals and progressives defend an Islam that will destroy all they find so valuable?