For anyone not aware, the American College of Pediatricians is not a legitimate medical association by any reasonable standard. It's an anti-LGBT political advocacy organization, considered a hate group by the Southern Poverty Law Center. They've been criticized by scientists who have (rightfully) accused them of misusing their work, and even by Dr. Francis Collins who, although he is best known for his opposition to intelligent design, is a fairly conservative Christian described by Christopher Hitchens as the most devout man he'd ever met and appointed by Pope Francis to the Pontifical Academy of Sciences.
When they say things like this, it needs to be treated the same way as messaging from Focus on the Family. Even if you, yourself, are an Evangelical Christian, you should regard their material as suspect. Look for supporting evidence from other people or groups and, if you can't find it (or instead find evidence that what they're saying is untrue), then you need to disregard what they're saying. These are ideologues first and foremost.