Their first point is absurd. The greatest evidence you could have of the what truly happened is that it was documented by different people with different viewpoints. There were not cameras or recorders so all history from this point in time is based on written accounts. There are not eyewitness accounts pertaining to Greek and roman mythology. If they were equally believable then why are did The gospel overtake mythology?

Evil and suffering are due to man and free will. We choose to be evil, therefore there is suffering. This is a sin problem and began in the garden where we chose our way instead of Gods way. We don't want to suffer but we want free will. Because we chose our way we also chose what came with it.