“It is not hard. Honest seminary-educated earstwhile Protestants study and convert, and are happy to tell their stories”
That’s interesting. I have four Roman Catholic educated college grads in my small group bible study that, after reading the scriptures, converted to Evangelical Christianity.
Tell them to keep studying. Catholic colleges in the US are Catholic in name only; exceptions are few.
The Evangelical mythology is easy, matches the modern mindset, and fits the anti-Catholic mood in the media. We are a medieval, deeply countercultural institution. Typically, people experiment with evangelical communities and either remain surface Christians or come back home to the Catholic Church.