Evangelicalism is a greater threat to Catholicism than Mormonism is.
It still saddens me that Catholic leadership recognizes only the Orthodox as legitimate churches with legitimate Christians.
As a believer in the type of unity Jesus preached in John 17, I will continue to look forward to that day.
However, to view trinitarian, biblical evangelicalism as a challenge greater than a newly minted religion, mormonism, that has Jesus being merely an exalted man born of a father who was an exalted man and ruling over a planet circling some star someplace in the (our?) galaxy is a bit of a reach for me.