No Escape: Male Rape in US prisons

I've been sentenced for a D.U.I. offense. My 3rd one. When I first came to prison, I had no idea what to expect. Certainly none of this. I'm a tall white male, who unfortunately has a small amount of feminine characteristics. And very shy. These characteristics have got me raped so many times I have no more feelings physically.

Gay rights activists often repeat the mantra that homosexuals are born that way. You cannot change either way. I like to dispute that. Take a look at the report published by Human Rights Watch on male prisoner-on-prisoner sexual abuse in the United States.

What is interesting is this

vast majority of prison rapists do not view themselves as gay. Rather, most such rapists view themselves as heterosexuals and see the victim as substituting for a woman.
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Perpetrators of rape typically view themselves as heterosexual and, outside of the prison environment, prefer to engage in heterosexual activity.

Can homosexuality be a choice? The report seems to imply so, for some men. So, should prisoners be given CSE on the safe and healthy way to engage anal sex, since "studies" have shown that abstinence-only education does not work?