Reality Check: What Must Be the Case if Christianity is True?

5) That there was a first human pair (Adam & Eve) who so grievously sinned against God when tested that all of the rest of us are being punished for it (including animals), even though no one but the first human pair deserved to be punished. If it's argued that all of us deserve to be punished because we all would have sinned, then the test was a sham. For only if some of us would not have sinned can the test be considered a fair one. But if some of us would not have sinned under the same initial conditions then there are people who are being punished for something they never would have done.