Homosexuality is not a "sickness" that can be "cured". Homosexuality has always occurred naturally within the human species - as well as other species of animals - the same as heterosexuality has. Sinning is also not a "sickness", it is deliberate and knowing actions against what the Bible teaches and THAT is a choice. Some homosexual people CHOOSE to deny their sexuality to conform to the teachings of the Bible, but you don't seem to understand what a crappy choice that is for homosexual people.Marriage of the same sex is an abomination. Science itself show that this is unnatural. Sticking you know what up a man you know is sick. Same goes when it is done to a female. Sick is the only way I know how to say it. But mankind is also sick. Homo, we know is a sickness, but mankind himself, does not see himself has a sickness. This sickness is call sin in the bible. And the whole theme of the Bible. God promise to cure the "sickness". Once this happen, the book says, "the truth shall set you free". When this happen, we will join the "family of the universe" the book of Revelation called it the Greatest celebration ever when all the Beings celebrate that "babylon" has fallen.
I'm sorry that you are so offended by anal sex, but homosexuality is not the same as anal sex. If you would do the math, you would see that many more heterosexual people have anal sex than homosexual people. Also, you should be reminded that other people's sex acts are none of your business.