No, you've got it backwards. Donald Trump is a devout Christian man who has made clear that he loves the Lord Jesus and truly cares about the well-being of everybody, especially the unborn. You think we can't see past his bluster to the heart inside? He is a fine man and a true conservative, even though naysayers like you laughably try to claim that he isn't.
Joe Biden, on the other hand, is everything you just accused Trump of being. Biden may claim to be a Catholic, but even a casual observer can tell that he only hides behind Scripture to appeal to gullible fools like the Christian Democrats (an oxymoron if I've ever seen one). He's got a cult of personality around him made up of sycophants who think he can do no wrong, and I wouldn't put it past him to attempt a coup and declare himself dictator given half the chance.