Are Roman Catholics Our Brothers and Sisters in Christ? (White vs Wilson)

Does Trinitarian baptism join you to the New Covenant? Does it join you to Christ? Does it make you a brother or sister in Christ with everyone else who has likewise been baptized, even if you hold to a false gospel? Are Roman Catholics our brothers and sisters in Christ by baptism, but not by confession of faith? These are the issues debated by Douglas Wilson of Christ Church, Moscow, Idaho and James White of Alpha and Omega Ministries.