Oh, more lies from the Catholic church that you are parroting, though you think they are the truth--but they are not! In case you forgot, YOUR church excommunicated Luther for refusing to obey the pope and repudiate the truths he had found within the Bible, especially in the book of Romans. Luther, following the directive of your supposed first pope, chose, under pain of possible death, to obey God rather than man, and stuck to his guns about the true Gospel that he had discovered in the Bible--which your church had attempted to bury for many centuries under a ton of man-made dogmas.
So, Luther didn't leave your church voluntarily; he was excommunicated, and made an outlaw.
Your church has no one to blame but itself. Had it listened to Luther and other reformers before him, and gotten rid of its unholy and unbiblical dogmas, taught the true Gospel of Jesus Christ, and gotten rid of its popes and popery with their corruption, he would have remained a good son of your church. But your church picked keeping its power and prestige over the truth of God's Holy Word.
So, please stop reposting this myth. Because that is all it is, a myth perpetuated by your church to make itself look good. But we know better.