I personally can't abide the idea that anyone past or present would ever need to die for my sins as it seems not only illogical but furthermore blatantly nonsensical. Everyones sins are their own and the atonement exists in the here and now as well as how their lives will be reviewed and remembered once they're gone. How one is viewed once they're gone is the closest thing to an afterlife I can envision.

The atheistsic concept of secular humanism (the position I embrace) [en.wikipedia.org] seems much more like one that could unify all people for everyones benefit and much more productively move mankind forward than any one religion ever could even if it were to be universally embraced as it is based on pure logic and righteous self conduct in how we relate and interrelate to and with others without basis of any principles relating to any theology or ideology built upon a basis of faith.

I will also say I disagree with interpreting secular humanism as a theology or religion as it's basis is actually founded upon the idea that no such philosophy based on "faith" is reasonable eventhough the judicial systems legally recognizes it as a religion. This position was tested and moved into existence by secular humanist groups wanting to achieve tax free status/exemptions for their organizations and is actually simply manipulating the laws in doing so as the members will still tell you they deny their philosophy to be a religion at all since it's not based on "faith"