It is a free country - if you want to promote bigotry and prejudice - you are free to.
I'm not the one who refuses to read what ex-gays have to say on the matter.
It is perfectly OK to be prejudiced or bigoted towards "behavior". We show prejudice towards all manners of other anti-social behaviors, why can we not show prejudice against homosexual behavior?
First it is clearly anti-social as the behavior cannot sustain a society (which is the whole premise of the article.) Second, homosexuality is clearly a "behavior". Homosexuals are self-defined by "what they do" -- not who they are.