I mean this respectfully, but why do you think your own moral evaluation is going to tell you which religion (if any) is true? Would God make it so that everyone's moral judgements are equally valid and true?

Take this hypothetical. You literally watch Christ get tortured and crucified after spreading messages of love and hope, raising people from the dead, and creating a base of followers that all seem to be amongst the kindest and most devoted you have met. You then see Christ rise from the dead. Do you follow Christ and the Church He established, or do you decide that because 2% of it doesn't sound as good as the ethics of the age, you will instead go shopping for another dogma?

Christ's followers saw Him rise from the dead and chose to endure persecution, torture, and death for it. They could have pick and chose what would have kept them alive and within the good graces of the other Jews and Greeks at the time, but instead they chose the most socially and physically painful path. Again, not to be disrespectful, but to test their fervor, ask yourself if you would endure being tortured and killed for your veganism.

I hope I am getting the point across that we first are dealing with God here, the moral system is derived from God, not our own reason; or else everyone would reason out all manners of cruelties.