It is Jesus’ final message.
Sin does not exist, they made it up to make themselves and others suffer.
Have you considered that some people are so keen on giving away their fortunes because it makes them suffer more, and thus makes them think they are now cleaner in God’s eyes?
The Christian message is that there's nothing we can do in our own power to erase sin, including suffering, hence the need for Jesus in the first place.
Death in Christianity is the final release from sin and its consequences, e.g. suffering, and into eternal joy...and being released of the weight of the consequences of sin eternally is supposed to bring joy and love in this life.
So I have no idea what you're talking about.
There are actually a LOT of different belief systems within Christianity and the related cults surrounding it, so you can't entirely sum them up by saying "Christianity". How I would respond to anyone stating that suffering is required to pay for sins is that it is un-Biblical and they've warped the message of Jesus, and are adding to/complicating the gospel.
This is possible in the Catholic church because edicts of the Pope and Councils have had equal (or at least near equal, I'm not a Catholic historian or theologian) weight with scripture, which of course have no weight at all to Protestantism as the Pope is just another person. Mother Theresa and penitents have such a drastically different belief system, that while I would not go so far as to call them non-Christian as I think only God alone determines that, I would say that their teachings are not the same religion as mine. Saints again are a purely Catholic thing, so to me and other protestants, Mother Theresa is just another person, and "Saint" is a worthless designation from the Catholic Church. In addition, individual adherents of what is classified as "Christian" can teach and believe (or fail in their belief) of the core doctrines and cease to become what I would consider Christian, despite doing things in the name of Christ. The church during the time of Paul's letters and Acts were dealing with the same thing, people using the name of Christ who were not what Luke or Paul considered Christians.
It sounds like a no-true-Scottsman argument, and perhaps it is, but the argument that I'm making is that you are lumping billions of people together, when #1 they don't lump themselves together (Catholics have considered protestants and the reformers heretics as well), and #2 they believe and practice drastically different things. You will likely hear Protestants hedge when asked if Roman Catholics are Christian, and the reason is because on an individual basis, there are Christians within the Roman Catholic church. But what they teach is not what we consider the Christian gospel.
