I believe you are 100% correct. Those claiming his Christian identity are trusting in the name of Christ and not seeing the humanistic nature of the apostate church.
Anyone can claim to be a good Christian. But that doesn't make it so. Michael Morales, that piece of offal on California's death row, is a prime example.
Unfortunately, many of the Christian churches in America have been infiltrated and corrupted by the Left, just as they have done with our schools and universities, newspapers and media, and judicial benches. For them, it's just another battlefront in their war on America and traditional family values.