Only if you consider "ex-gay, or ex-homosexual" search Google result as one source !You showed one source, and it was saying the opposite of what you said it did. So you have, as yet, shown no evidence that it can be done.
Yes, the WHO has said that there's no evidence it can be done, and that it's damaging to try and do it. Under the recommendations of the WHO and other organisations of similar stature, several countries have made it illegal to attempt to change someone's sexual orientation, due to the damage it can cause.
I know quite well what damage it does to people, and how ineffective it is. I have friends who've been through it.
You can't deny there is thousands of homosexual want to be straight, they working for.
You denied that some of them could , that denial of facts.
Yes, WHO can't said it's possible or impossible that homosexual people turned straight or inverse.
I do believe me and you can't be agree on something ever,it's just wasting of time.