“What are they scared of?”
More to the point, why do care what the RCC teaches about the Bible. I find it quite telling that like secular leftists, there are a few Protestants that obsess over the teachings of the RCC. A mindset that would be upset over the RCC’s teachings on Mary, etc., is the same mindset that would be upset if someone denied climate change.
What do you care that I care?
“More to the point, why do care what the RCC teaches about the Bible. “
Bingo! You hit it on the head.
Nobody goes to hell for climate skepticism, idolatry is another matter.
Many Americans were raised in one faith or the other, or in families containing powerful members of both faiths. These matters remain conflicted emotionally until the individual has enough time and experience to sort them out.
Also, with the manifest corruption in certain quarters of both traditions, many people feel the need at least to consider whether the grass would be greener in the other one. This article is an important piece of information to consider.