Catholic Church get's sued over existence of Christ

[R'as al Ghul]

If he decides in favour of Cascioli, somebody will probably drop by to officially confiscate our Bible... but perhaps we can keep it if we blacken all references to "Jesus"

With all that black the New Testament would look like a CIA document.
But seriously, what's the Vatican's position on this?
A civil judge judging a transcendental matter? This is absurd.
Who gives him authority to judge about this dispute?