There are nothing in itself. If there was, it wouldn't be a part of the world.
So here it is for science by a scientist:
So here is what you do. You are a rational reductionist. You believe you can reduce the world down to parts separate from each other. You can't. You are embedded as a part of the word and you are nothing in yourself, because you can't be in yourself.
As for the rest, you do the following. You reduce everything down to either conceptual or perpetual in themselves, but there are several problems with that:
You rely on concepts in your brain, rules, to state these absurd claims:
The problem is that importance and value are conceptual and not perceptual.
The word "real" is conceptual as it has no objective referent.
You reduce reality down to what is really real and I just answer that is only real to you, because real is an idea in your brain, that you can't turn physical. It is mental and it is only in your brain as a concept; an abstract idea.
You think that you can turn everything in to being expressed in physical terms, but the problem is that it is an idea in your brain. You can't do it, because some words don't have a perceptual, tangible, observable, objective, independent of the mind referent and the word "real" is one of them. "Importance", "value", "unique", "in itself" and so on are other words, which are conceptual.
So don't do that. It is years ago, I learned to spot what you do. That is not unique to you. I have come across it many times before. It has a rich history in philosophy and the problem is always the same: "All concepts can be reduced to percepts." The problem is that it is an abstract idea itself and I all have to do, is answer: No!
You are not that unique, neither am I. You haven't solved anything for an uniform, universal methodology of how to be human. Neither have I, I just know that neither you nor I are that unique.
I am a skeptic and you are a rationalist, who believes, he can make a rule, that everything is real only as objective and what not. The problem is that the rule is subjective and I use another set of rules than you. You then declare yours objective for all humans and then you arrive at the result that mine are "wrong". They are not. Both set of rules are subjective and can't be compared because there is no objective standard.
What you do and you are not the first to have tried to do that: You try to do reductive physicalism and it fails everything, because reality is interconnected and you can't reduce something down to being physical in itself, because I just answer: No!
And then I live in a fantasy world be myself, yet you know it, because you point it out and thus I can't live in a fantasy world by myself.
So the absurd part is that you do a duality of really unreal, a fantasy world, yet you speak of it as real, otherwise I couldn't be in it.
I can separate concept and percept and you do it differently. I accept that. I just point out that is an idea in your head. A fantasy, which works for you, but not me, because I can in fact do it differently. So I use a different fantasy and it works for me.
So you can do philosophy all you like and I just answer: No! I can do it differently.
BTW From your link:
And off we go with ideas in brains. You are not that good at spotting the problematic parts, if it agrees with your bias, right?!!