It's just like the Allegory of the Cave in Plato's Republic.
If you present the truth to a group of people who believe something completely different, you are to expect an angry and sometimes violent reaction.
In the same way, the practicioners of peace and tolerance on the left continue to wage a war against the religous valus upon which this nation was founded upon. It is an idea which threatens their sovereignity over their own lives and their own destinies and this causes them to be fearful and react with anti-Christian propaganda.
Now I am not without a sense of humor. My favorite television show of all time is South Park on Comedy Central, and they unload on Christianity quite a bit and I laugh my head off. I don't mind humor about Christianity when it points out the seeming inconsistencies and strange traditional practices, but when there is a government organization called the ACLU who wants nothing more than to stomp out Christianity, the religion that holds the values that our nation was built upon, well that is cause for alarm. We are a predominantly Christian country and we have flourished.
If it isn't broken, why fix it?