By the way if I disappear from the conversation its because I am off to bed not because I have lost interest.
Please try to distinguish between absolute, objective and relative morality.
Absolute morality is ethics by divine fiat. Rejecting it does not condemn us to merely accept popular opinion as the alternative.
Homosexuality is a good example. According to divine fiat it is wrong. According to popular opinion it depends on where you do your survey. But being objective we only have to ask the question of whether consensual gay relationships promote or damage human well-being.
We could establish first that homosexuality is largely determined by genetics and embryonic development. People don't choose their sexuality. Let's not have the debate now lets just agree that this is a question that lends itself to scientific investigation.
Then we could consider whether the acccusations against gay relationships have any objective merit, and so on.
Our conclusion is neither based on absolutes or popular opinion but on objective facts and reasoning. That is real morality.