(Replying to my own comment because I can't reply to the one below)
If right and wrong are not matters of opinion, then what objective test does one use to discern which is which? For example, is contraception right or wrong — and why? How about same-sex marriage? How about interracial marriage?
As to rape: You and I certainly agree that it's wrong, but that hasn't been true in all times and circumstances (are you familiar with droit du seigneur and its variations?). And the Russian soldiers who raped their way through Eastern and Central Europe in 1944-45 were told by many of their superiors that it was their right to do so.
If right and wrong are not matters of opinion, then what objective test does one use to discern which is which? For example, is contraception right or wrong — and why? How about same-sex marriage? How about interracial marriage?
As to rape: You and I certainly agree that it's wrong, but that hasn't been true in all times and circumstances (are you familiar with droit du seigneur and its variations?). And the Russian soldiers who raped their way through Eastern and Central Europe in 1944-45 were told by many of their superiors that it was their right to do so.