I am an orthodox Christian, ask me a question!

[Jon Paul]

1. First of all - evidence for that please.

Evidence is the wrong word. But I have provided the reasons why it cannot be so. Simply put, because there will be no (objective) mind which transcends the subjectivity of subjective minds (human minds).

2. If it is so - then so what? Why does morality have to be objective? Or why should it?

It, exactly, does not have to be objective. Unless you want to make moral judgements, which presuppose an objective standard which applies to everyone and which therefore you can make valid judgements about others.

However, what you have completely ignored is that this is only the part about moral truth being founded in an objective foundation in the epistemic structure of Christianity. You have left out the part about logical truth, to which the same thing applies, for the same reasons. So you cannot make logical judgements or moral judgements in an atheistic epistemic structure. You can so in a Christian epistemic structure.

3. Personally - With or without God I know of no evidence for objective morality etiher way. So I certaintly do not believe it exists. And I don't see why I should care?

The "evidence" is the only word you know. But this argument is not about evidence, because it is not an evidential argument. It's merely an analytical argument, which analyses already existing worldviews. It's an agnostic argument. If you start bringing evidence into it, it's no longer an agnostic argument, and then it becomes incompetent in analysing worldviews, which is it's only function.