:::The top of the article discusses uses and meanings of "homophobia." The fact that "homophobia" is used as an ad hominem attack is common knowledge and belongs at the top of the article with other common uses of the word. Not including it at the top with the other uses shows bias and POV. Additionally, the fact that its misuse (identifying anyone who opposes homosexuality as being necessarily motivated by fear) is a misnomer should also be at the top of the article, again, with the discussion of other uses of the word. Not including the fact that homophobia is often used as a misnomer at the top of the article violates neutrality, accuracy, and completeness. 
 :::The people and organizations cited are mental health professionals  psychiatrists and psychologists  working specifically in the field of homosexuality. They are experts and by Wikipedia standards, reliable sources. Experts disagree. Remember, this is a controversial topic. You should expect disagreement, even among experts. Disagreement (especially on a controversial topic) doesn't make either side wrong. Excluding facts, which disagree with your POV, violates the principles of Wikipedia.