That's despicable, and yet the unbelieving multitudes will gobble it up, hook, line and sinker, without doing any honest research. Their never going to find another person who was born of a virgin, though I admit that there was a time where I was taken aback by that assertion, until I attacked it with honest research.
Uriel, the CMRI believes in baptism of desire and salvation outside the Catholic Church. I'd admonish them one or twice and then avoid them, knowing that they sin and are subverted, being condemned by their own judgment.