While it doesn't completely surprise me, I find it interesting that those who are supposedly the most tolerant are completely intolerant of anyone who doesn't accept their belief system. They may claim that we can all "believe what we want," but if your beliefs including thinking you are wrong, you are worse than an infidel to them.
How tolerant is that?
It is really a human problem. No one can really completely accept anything, so they only claim to do so until their hypocrisy is exposed. Unfortunately, most people don't currently hold others accountable for such hypocrisy.
How honest are you about your intolerance?