Elliott Abrams. Democratic Republic of Congo. Vasubandhu included homosexuality among sexual practices that were forbidden because of their association with foreigners,  and the Dalai Lama has stated that male-female relationships are intended by nature, though without condemning same-sex relationships. Dire warnings of slippery slopes are scaremongering. It also implies a nefarious gay mafia that is out to wreck marriage for straight people.
The treatment was a program of eugenicsstarting with sterilisationthen a system of working people to death in forced labour camps, and eventually refined by medical scientists to include euthanasia.
Section 28 was later removed from the statute book by Tony Blair's Labour government in Insame-sex marriage was legalised under Cameron's leadership,  which Cameron described as "an important step forward" and said that he thought that "it is right that gay people should be able to get married too". Afrobarometer found that majorities in three countries in addition to South Africa—Cape Verde, Mozambique, and Namibia—are tolerant of homosexuality. It is also beside the point - straight couples are not precluded from marriage on the basis they may be unfaithful, so why should gay people?
Don't ask, don't tell.