Parables & Brainwashing

Why be Catholic if you are already a Protestant Christian? Why did Jesus use parables to teach? What does this reveal about sharing the faith with others? Does God brainwash people?

Article: “Practice, Patience, Prayer: Lessons in Evangelization From the Parables” https://www.wordonfire.org/resources/blog/practice-patience-prayer-lessons-in-evangelization-from-the-parables/32434/