My parents are trying to get me to see a "Gender Identity Specialst"

I'm a 20 year old male, and my very religious parents found out that I'm gay last week. My mother was snooping in my room, and read a few text messages to a friend. My mother asked her bible study, and Cathy Burns (wife of Jim Burns, founder of Focus on the Family) suggested that I go to a Gender Identity Specialist, to try to fix me. My mom ordered his books ("Preventing Homosexuality" and "Shame and Attachment Loss"). My parents both seem to be on board with it. They're starting to get in my head. Does anyone have any perspective on this? His website is http://josephnicolosi.com/

For the record, they had no idea I was gay until they saw my messages. I don't act it at all. I definitely had a lot of trouble accepting my orientation in high school. And my parents meddling is not helping now at all.