Extreme sarcasm noted as well as your your degrading many academic theologians simply as 'liberal theologians. It is by far the dominant academic view that the apostles were not the authors of the gospels, because as a matter of fact nothing of the gospels remotely date from the lives of the apostles and early in church history the gospels did not have authors.
You can have your late-dating, anti-supernatural, anti-deity of Jesus, and revisionist liberal theologians. If they had any real spiritual understanding they'd be conservative theologians, who endorse the traditional gospel authors, the resurrection of Jesus, the reality of the Holy Spirit - who is also God, and other traditional beliefs. As for liberal theologians having the "dominate academic view" that the traditional gospel authors didn't write their gospels, where's your poll on that being the dominate understanding of all theologians? That's only the view among liberals, who screw up almost everything - morality, economics, theology, etc.
You want good New Testament theology, read the traditional Gospels as they are and try not to reinvent them - as liberal theologians tend to do.
And if you think there's some fictitious material in the Gospels, then make your case. Show me your
best ONE (1-just ONE, your best ONE) example of a fictitious person, place, or event in Matthew, Mark, Luke, and John. Cite the pertinent scripture(s) and make your case. Let's see that bad boy.