The key to your post: "Brown believes..." We all base our faiths on what we believe. Brown may very well believe that Mary and Jesus were married-- that is his right. That I believe he is wrong is MY right, and neither of our beliefs should be affected by the other (much as I might like everyone to believe as I do).
This is the essence of faith-- recognizing that it IS faith, not provable fact. Politically, we must acknowledge the rights of others to believe, and express those beliefs, in a way inconsistent with or even contrary to our own beliefs.
Liberals cannot do this apparently. They require not only that we allow them to believe as they wish, but that we accept and even agree with their beliefs. This, of course, is intolerance, which they would deny.
Brown can believe whatever he wishes, I have no problem with that. But his beliefs are no more credible as a Holocaust denier, and he should be exposed for that. Brown's beliefs are based on hatred towards Christianity, not on facts. There is nothing credible about any of the stuff Brown passes off as facts.