Recent posts by two bloggers I really enjoy demonstrate how dangerosuly inaccurate stereotyping can be.
Mark Sides, a lawyer in Minnesota, is a committed Christian who is politically conservative. He supported George Bush in the recent presidential election.
Deborah White is a committed Christian who is politically liberal. She was an ardent supporter of John Kerry.
You may find their posts interesting.
Here is Mark's. (Scroll down to his November 29, 2004 post called, "Cities for Life---NO to the Death Penalty.")
Here is Deborah's. (Hers is titled, "Abortion is the New US Prohibition---A Plea to the Democrats.")
Their posts suggest that not only is it dangerous for others to stereotype Christians, it's also problematic when some Christians (and neither Mark or Deborah do this) claim that their political views are the Christian ones. Christians have many varied political opinions.