I mean I think religion has it's ways to make people happy too. Some people find real happiness in religion mixed in with their music. If it's not for you just stay away from it.
I'm fine with Gaga talking about religion but I wish she did it in a sensical manner. Name dropping Mary Magdalene in Bloody Mary and Black Jesus really had no point or anything to do with religion. It was purely to push some buttons. Even though Judas makes perfect sense and she's still heavily religious it's pretty obvious she knew she would rile people up by saying Judas is the demon I cling to.
With that said anyone who thinks Gaga is satanic is delusional as the people who say rap or heavy metal is against christianity. There are millions of people who have made similar metaphors and similes to christianity. Many just assume because she's a popstar that is pro-gay rights that she's against religion(because Madonna set that trend).