"Among those who identify themselves as liberal, it was approaching 50 percent that believe Christians are the greater danger."Yes the Liberals are bound to be against the Christians. But there are many Liberal Christians like PCUSA and Episcopalians who wouldn't know the Bible from the bus timetable.
The problem is that most people don't really know what a real Christian is. Most churches today are either Liberal or Arminian who are nominal Christians.
The actual Bible believing Christians are the Reformed churches, that is Calvinist, but even within them Satan has his servants trying to rock the boat.
The visible church is everything which calls itself Christian and evangelist but is a complete mix of Roman idolaters, Protestant free willers and heretical religious reprobates.
The majority of people in the religious community who cannot identify the invisible church, are hypocrites who go to church to sing songs, entertain themselves and feign piety. These are the false witness.
WCF.25 "The purest churches under heaven are subject both to mixture and error; and some have so degenerated, as to become no churches of Christ, but synagogues of Satan. Nevertheless, there shall be always a church on earth to worship God according to his will."