The bishops point out that Maguire is wrong to claim that the Pope is but one voice of many among Catholics and that Catholic teaching on killing babies, etc., is "pluralistic."
Go to http://www.usccb.org and click on "Latest News" to find the bishops' press release and statement against Maguire.
The New York Times says Marquette University, where Maguire teaches "religious ethics," issued a statement that agrees with the bishops that Maguire's views in his pamphlets contradict Catholic teachings. Maguire has tenure at Marquette, though.
As we might expect, Maguire is persisting in his errors. He says about the bishops' statement against him, "They're simply uninformed."
Catholic dissenters such as Maguire agitate for a while, gain some followers and then cite those followers as supposed "proof" of a "lack of consensus" in the Church. The U.S. bishops should have come down harder on him many years ago.
Now, if only the U.S. bishops would take a look at the teachings of some of the speakers who get invited to the Religious Education Congress of the Archdiocese of Los Angeles.