Twice, actually. The other is in the Nicene Creed: "And by the Holy Spirit, was incarnate of the Virgin Mary"
I wonder ... do these anti-Catholic folks disagree with this sentence? Perhaps that's the real problem.
I am pretty sure they agree with it, their problem I believe lies, ultimately, in the Faith v Works issue. Catholics believe that you can fall out of grace, and I think that is a threatening concept to many Protestants. The frustration and fear caused by their inability to even make to themselves a convincing argument against that concept, gets expressed in bashing and ridicule of Catholicism.
That probably is the real problem.
People who worship their own Most High and Holy Self can't stand the idea of Christ being fully human.
They can handle the idea of an abstract sort of God in the afterlife and Christ as holograph of some sort, but not Jesus Christ as fully human and therefore superior to their Self. They're following Eve rather than Jesus Christ and as icing on the cake, encouraging anyone who will listen to them to perish in the contradiction of Core.
The best thing to do is let them keep wallowing in their own muck and returning to their own vomit. When they're playing their favorite game, Publican in the Temple, they don't even understand what they're saying much less what anyone says to them. They're deaf and blind and, in reality, dumb as well given that they have no life in them but spout whatever any convenient spirit, hanging like Spanish Moss from some nearby tree, tells them to spout.
If the Holy Spirit sends someone to them in person they may some day realize the error of their ways and repent. If not, they'll be hearing, "I never knew you" from the same Jesus Christ they slander by slandering His mother, and call a liar by contradicting what Jesus Christ Himself said.
They have no life in them, they've accepted life as zombies and trying to talk with zombies is a waste of time. The fields are ripe, move on to the wheat waiting for the harvesters.