The real "farce" is the pagan copy-cat claim. Even secularists have come out against many such claims (for example see the section on "Dying and Rising Gods" in the Encyclopedia of Religion). Also look up the sections on the individual pagan gods (eg. Horus, Oriris, Attis) in encyclopedias, and you not find many of the so-called parallels. The copy-cat claims tend to rely on: 1 Post-christian sources (eg. the use of a thrid century crucified "Orpheus Bacchus" amulet) ; 2. Terminological equivocation (eg. being shot in the foot by a hunters arrow being labeled as "crucifixion); 3. Unjust dismissal of legitimate historical sources 4. Fallacy of false cause; 5. Poorly documented (or completely undocumented claims).
http://www.tektonics.org/copycat/copycathub.html
http://www.iclnet.org/pub/resources/text/cri/cri-jrnl/crj0169a.txt