How is Hamlet anti-Christian?

Answer 1

Hamlet is clearly based in a Christian milieu. It is not in any way hostile to Christian people, and so is not "anti-Christian". The theology which underlies it may not agree with the theology adopted by your particular sect of Christianity, but only a rabid fanatic would describe the theology of a different sect of Christianity as "anti-Christian". In a couple of respects, the theology appears to be Catholic: Hamlet's father appears to be in purgatory, which is a Catholic doctrine. Also, Catholic doctrine forbids the burying of suspected suicides (like Ophelia) with the full rights of the church or indeed at all. But on the other hand, Hamlet believes that by praying Claudius will cleanse his soul so that he can go to heaven; that is, his sins can be remitted without the assistance of a priest. This is a Protestant Christian idea and not Catholic at all.
But leaving aside questions of what brand of Christianity is being practised in the play, there can be no doubt that, from the first scene where Marcellus talks about the season "wherein our Saviour's birth is celebrated" to the last scene where Horatio prays that "flights of angels" will sing Hamlet to his rest, the play is unequivocally Christian in character.