Useful Idiot would be a better term.
These bishops are NOT really Catholic. They are playing "dress-up" Catholic. They are Marxists. They break the First Commandment by worshiping Karl Marx instead of God.
By the way....We know what Yuri Bezmenov, the former KGB spy, said about Useful Idiots. They were the very first people the communists lined up and shot.
Of course they shot them. They were no longer useful. But they were still idiots.