Not quite. This study and others are following up on ground breaking research by Simon LeVay in the 90s. He showed that certain hypothalamic structures (part of the brain involved in controlling sexual function) were different in homosexual men when compared to heterosexual men and were closer to size and density to female hypothalami. In other animals, the structures are known as "sexually dimorphic nuclei." The development of these structures determine the sexual behavior.
In essence, there is a large portion of homosexual men that have a physiological developmental disorder - these brain structures failed to develop in the normal masculine pattern. They have a physiological defect.
There are homosexual men that have suffered sexual abuse and trauma at a young age and thus the homosexuality is a behavioral symptom from that abuse. These show normal brain structures but abnormal behavior. The problem is a psychological defect.
Thus a "cure" is problematic. A psychological cure will not correct a physiological defect and a treatment for the physiological defect will not cure a mental problem.
I believe you are correct. The abnormality is an effect rather than a cause.
Not surprising.
Similar brain studies done were reported on after Columbine irt the effects of playing violent video games. Violence was proven to cause a definite alteration, a "re-wiring", of the brain. It was in Newsweek.
But then again, Jesus told us that people will reap what they sow, but who wants to think it will happen them or their brain?
Our ignorance is great.