Here is how I would define axiological hedonism:
- Suffering, i.e. any negatively valenced experience, has intrinsic disvalue.
- Pleasure, i.e. any positively valenced experience, has intrinsic value.
- Nothing else has intrinsic value or disvalue.
The core of my take on axiology is that something has intrinsic (dis)value if and only if it literally is valuable. Intuitions are not evidence for intrinsic value.
I am convinced that suffering (and pleasure) fit this criterion. The disvalue of suffering is self-evident from introspection, i.e. from observing how suffering feels. The disvalue is inherent in the experience; it is not a matter of an evaluation done by me, or a desire for the suffering to stop felt by me (even though there is a strong correlation), or me having a certain attitude towards suffering.
That being said, I think a subjective judgment cannot be avoided when it comes to comparison of (different kinds of) suffering and pleasure. In the words of John Stuart Mill:
Neither pains nor pleasures are homogeneous, and pain is always heterogeneous with pleasure. What is there to decide whether a particular pleasure is worth purchasing at the cost of a particular pain, except the feelings and judgment of the experienced? (What Utilitarianism Is)
An experience does not inherently carry information about its commensurability with other experiences, but it does carry the basic information that its value is positive or negative. The basic variant of axiological hedonism is only concerned with the latter.
I'm sympathetic to illusionism about phenomenal properties (illusionism about phenomenal consciousness), i.e. I don't believe consciousness is phenomenal, ineffable, intrinsic, qualitative, etc.. People often mean phenomenal properties or qualia when they talk about things just looking a certain way. This might cut against your claims here.
However, I suspect there are ways to interpret your statements that are compatible with illusionism. Maybe something like your brain is undergoing specific patterns of reactions and discriminations to inputs, and these are distinctive for distinctive colours. What it means to "look" or "feel" a certain way is to just undergo particular patterns of reactions. And it's wired in or cognitively impenetrable: you don't have direct introspective access to the processes responsible for these patterns of reactions, only their effects on you.
Furthermore, everything we respond to and are aware of is filtered through these processes, so "we cannot ever be sure what is really "out there" that we are interpreting".
I'm not sure about this. I'd probably want to see a deductive argument for this.
I'm not saying values don't exist, I just think they are projected, rather than intrinsic. It can still matter to whatever's doing the projection.
This seems to me to be separating the apparent disvalue from one of the crucial mechanisms responsible for (a large share of) the apparent disvalue. Motivational salience is what gives suffering its apparent urgency, and (I think) a big part of what makes suffering feel the way it does. If you got rid of its motivational salience, it would feel very different.