what should i even say?

[Esquilax]

For example.

No, you're wrong. The moral act is to use a proportionate level of force. If you are trying to kill me I am morally justified in trying to kill you.

Justified, yes, but I hope we can both agree that the ideal way for that situation to end involves no loss of life, yes?

The above is a bald statement of opinion on what is moral, underpinned only by a fairly vague concept. But then, so was yours.

So what we have here is my belief on morality vs yours (subjective).

But there isn't a disagreement- again, I hope - on what the moral pinnacle is, in that situation. The existence of less moral possible solutions doesn't mean we're working from a subjective base, it just means we often fall short of the ideal on questions of morality. I'm not arguing that we don't have subjective values, just that there are objective truths to be known about the world we live in, and that because of this, all of those subjective opinions aren't equal. Some can just be wrong, and one can be more right than another.