Apart from their antisemitism; their hatred of the Living Msgisterium; their hatred of the most recent Ecumenical council; and their hatred of the normative Mass, I don't really know what attracts their followers :)
You forgot their hatred for NFP, John Paul II and Benedict XVI. I was told recently in one conversation the we "neo-Catholics" worship JPII and Benedict XVI. And JPII's Theology of the Body was "drivel and petty." Of course my all time favorite comment was how JP the Great (they have a heart attack if you call him that) only taught against abortion because of the liberal views about man he had. See, honestly this is what the guy said, JP the Great thought that man was so wonderful "and had all this dignity and that's why he opposed abortion."