In a recent article in the Telegraph, Charles Moore, a former editor of that newspaper and of the Spectator, noted that “all mainstream religions, in most of their major manifestations, define marriage as being between a man and a woman”.  

In the light of this he declares that MPs who want to ban so called “conversion therapy” are “arrogant and undemocratic” because of the risk that it would prevent parents and ministers of religion from teaching that marriage is between one man and one woman. Therefore, they logically want to point their followers and congregations towards man-woman marriage over other lifestyles, which a ban on "conversion therapy" risks preventing them from doing.