Perhaps someone can explain exactly how phenomenology is actually different from phenomenalism when it comes to the question of objectivity. I think that the only difference might be Huserl’s idea about intersubjectivity-but that is consistent with phenomenalism. At the core of each is the idea that perception is the only foundation for objectivity. The move that empiricists would want to make is to say that there must be some grounding for our subjectivity that must ground our perception of the world whether we perceive it or not.
The existence of things in the world, in other words, can’t just depend on our perception of them. Is this a trap that phenomenalism and phenomenology fall into? It does seem that intersubjectivity involves the presumption that someone must perceive an object in order for it to be considered a reality. I don’t think it manages to avoid Hume’s more objectionable skepticism about unperceived objects, in other words.
Intersubjectivity seems about as good as it gets if you want to take phenomena as the basis for reality, however, since it is basically consistent with science. And yet it does seem to fall into the trap of Cartesian skepticism that perception makes the world rather than the other way around, or that it is our perception that validates the existence of things rather than that it is the existence of things that validates our perception. The trap being simply that no actual world apart from my perception needs to exist at all for the phenomenological viewpoint to follow. In other words my reality is consistent with a dream if the phenomenologist is right.