As usual, the same old inane reasoning spat out by someone who's ludicrous. What irks me even more is that he has that audacity to tell the media all Malaysian cultures reject what he rejects. I wonder what he's doing all this time when there are so many research articles telling the methods he literally suggested are utterly useless in 'changing' one's sexual orientation.

https://www.hrc.org/resources/the-lies-and-...arative-therapy

Above's link includes studies by various American scientific organisations as well World Psychiatric Association on the ineffectiveness of "reparative" or conversion therapies.
I agree although I want to point out that there is a growing number of muslim women themselves no longer subscribe to the idea that headscarves are necessary in order to be a good muslim. 

YouTube: _J5bDhMP9lQ

I think if someone gives a similar talk as above highlighting the true meaning of hijab in Malaysia, they would be hauled in jail already.

1. References to scholarly consensus

Despite Ali claiming that her position has the support of ‘early Islamic scholars”, she fails to name a single one in the entire 17 minute video. For a talk taking place at a university, her lack of referencing is surprising. Islam has a rich historical tradition of rigorous scholarship, which she acknowledges, but otherwise fails to cite adequately.

Whilst Islam does not have a determined category of the clergy that are on a different religious plane, as other faiths do, the respect and acknowledgement of the knowledge of scholars is integral to our deen. The Prophet Muhammad ﷺ said:

    The scholars are the heirs to the Prophets.[1]

In addition to this, the ijmaa‘ (consensus) of the scholars is taken by several scholars as determined source of Islamic rulings within the discipline of Usul ul-Fiqh (principles of jurisprudence)[2]. Consequently, to invent a supposed consensus is to introduce an abberation to the Islamic tradition.

2. Historical inaccuracy

Ali starts the video with a vivid telling of women in Madina making a dangerous journey to relieve themselves in the desert in the middle of the night. But in the rest of her 17 minute talk, she never actually ends the story. She says that then the women went to Rasulullah ﷺ and he allegedly gave them the verse from Surah Ahzaab regarding the jilbab, but then says that people were not happy with the ayah. So what did they do? Did they disobey the Prophet ﷺ and continue to dress as they had before?

Ali also makes the claim that “scholars” then decided that Muslim women must dress as custom dictates – but there were no scholars engaging in ijtihad at the time of the Prophet; he was the central authority. They were not needed when the Messenger of God ﷺ was receiving direct revelation. So who decided this, and when? All of these details have been conveniently left out.