You talk about things that exist only in your imagination. There is no such thing as metaphysical anchors. You sure like to dramatize reality.
You told me that there is no truth of any sort. And now you are making a truth-claim.
I well understand that you do not understand what man’s imagination is, and for this reason you cannot consider its ‘reflective’ nature. In all senses, in all ways, now and forever, man’s memory and imagination are ‘reflective’.
Now, I do also very well understand that you do indeed deny that there is a god. But please notice that you, by your own declaration, have no basis of any sort to make such a robust truth-claim. On what basis — on what epistemological basis mind you — do you base the assertion?
Again, by your own definitions, your ‘first principles’, you cannot make such a claim.
A metaphysical anchor could be something as simple, or as basic, as an ‘idea’ — such as ‘justice is a good and necessary thing’. There is not objective power that exists in this world, nor in your world, that can insist or does insist that ‘justice is good’ nor one that enforces it. It is an idea peculiar to man.
In this sense ‘justice’ is an idea and it is, in this sense, metaphysical. It is your (or culture’s, or a given people’s) metaphysical imposition on our world.
There are all manner of different ‘metaphysical anchors’. You should be able to see them yourself!
Obviously, when I refer to metaphysics and to divinity, or the transcendent, I am referring to a category that you obviously deny. But not because it is metaphysical, since you can recognize a metaphysical notion or value-imposition.
Now, I have just used language to explain, clearly & definitively, things that are real and also true.