Again, bad rhetoric on my part. I should have explained myself better.
An objective morality exists for every subject.
However, we do not have to agree on that objective morality meaning it is not necassary that one of our opinions is objectively correct. We may have differing opinions that are both immoral yet we believe them to be moral, the fact will remain that an objective moral truth does exist.
You said out of all the issues in history? Yes? Since I considered that many issues could have up to 10 or even 20 conclusions, there is no reason to assume that my or your conclusion is the morally correct one. We may both be wrong, but there is an objectve moral truth to each of these questions, yes, if that's what you were asking.