Only the ones who have already left the Faith
Look at the stories even here on FR. The exCatholics leave for personal reasons (I have seen their stories over and over, which they will often either deny or minimalize during ongoing threads addressing such matters). Protestants who join the Faith do so for theological reasons, often leaving behind much if not most of their lives.
I suspect that there may be further discussion on this...
Mark, as you also have asserted that the apostle Paul himself was a “pushy guy with a chip on his shoulder”, and a large “inferiority complex a mile wide,” and whose epistles likely had to be massaged, then it is not surprising to see you relegate the RC convert to evangelical churches to only be ones who have personal reasons, rather than the lack of the spiritual life which attracted souls originally to the church.