Catholics as Scientists (Also Jews As Scientists)
The presumption, as with all such "as" forms, is that Catholics [or Jews, or any religious group that isn't Protestant] aren't likely to become scientists due to some quasi hereditary or doctrinal defect. The solitary fact that Gregor Mendel was a monk amply discloses the spuriousness of that contention.
Remedy: Catholic Scientists, or assign to Scientists, Catholic.
Sanford Berman, Prejudices and Antipathies, 1971.