Ben Carson: Being Gay is Choice Because Some People Do Gay Things After Prison

Dr. Carson, this isn’t brain surgery. Being attracted to the same or opposite sex isn’t chosen like you chose to speak outside of your area of expertise today.
On CNN, Carson聽told Chris Cuomo that being gay is choice and he knows this because of prison. Carson said:

Because a lot of people who go into prison go into prison straight — and when they come out, they’re gay. So, did something happen while they were in there? Ask yourself that question.

Some people do make a shift in prison but probably not “a lot.” One study I consulted found that about 17% of prisoners said they had shifted orientation from before prison to the time of the survey. Those prisoners were still incarcerated. Most of the switchers said they became bisexual. They should be surveyed when they leave prison; most will likely revert to pre-prison identifications.
More disturbing is Carson’s reliance on a clearly exceptional population. He should know better than to draw conclusions about all gays because of the exceptions in prison. He surely did not choose surgery techniques or medicines that way.