I listened to it, and the actual context was about using ‘security’ as an issue and not ‘religion’ as an issue.
He did say that he would allow Muslims in, but I think he was trying to work around the accusation of a ‘religious test’.
Trump would have accepted the downside and said, “Yep, Christians will assimilate better.” or something like that. Ryan doesn’t have near the backbone that Trump does.
And it would be the truth.