Yeah, really shows the depth of thought that went into this article. Clearly, having a degree in Womyn's Studies makes you a genius.
Moreover, the author makes the same deliberate "mistake" that most right wing anti-Catholic bigots do: he assumes all who say they are Catholic, or have Catholic parents, or an uncle that's Catholic, are truly Catholic. Of course they aren't, but it's handy to use these non-Catholics as a straw-man to bash Catholicism.
Is a small, Calvinist church in the middle of WASP country going to be more ideologically pure? Of course. Does this somehow invalidate Catholicism? They'd like to think so.
Nonsense, Catholic means baptized members of the Catholic denomination who consider themselves Catholics.
Protestant means all the other Christians, people who have never been baptized or may not have ever been in a church but consider themselves a Christian, blacks, Hispanics, gay Episcopalians, Lutherans, Evangelicals, and any and all, it is a vastly more diluted category than the baptized Catholic church members, yet the catch-all non-catholic Christian category is still far to the right of the catholic denomination.