(1) You are saying that "reality" is bunk.
In which case I must be a picnic table.
Again, that's not what I'm saying.
The only reason why we, as a society, pathologize alternative views of reality is when an individual's perception of reality comes into functional conflict with said society. And so we have functional people who hear voices and see things vis a vis the non-functional variety who become hospitalized, treated with medications, etc.
The truth is that despite all modern research, we don't really know the full spectrum of perception that most people are experiencing under the assumption of normal, common reality.
Beyond that, the "oneness" I'm referring to in this instance is the oneness with which the content stream is received. Parsing it into real vs. unreal is only a function of utility and conformity.
(2) That others do not exist. That everything is you.
Neurophysiologically, this is true. Energetically, not really. I believe, in a relative way, that others exist, but I also understand that my meeting of them is dealt with by the content filters of my own physiology and biology combined with the unique nature of life experiences.
You are indeed one person, so there is your oneness you are feeling. The totality of you and the totality of all are not the same thing because you do not know or control reality.
Again, not what I meant.
I'm saying that reality is capable of producing anything and it's all experiential. Its imagery and content, no matter where it comes from, is all experienced by your awareness. The only reason to parse real or unreal would be based on the utility of any given person, and people get drawn into this dichotomy whenever they compare their experience to that of another's out of social obligation. In a nutshell, WHO CARES? It's your experience, you decide.
(3) And that your awareness is separate from your existence.
No, it's all part and parcel, but there are levels to the awareness. There is ego with its survivalism dramas, and a "super awareness" if you will overviewing the situation. The ancient Maya called it the "sky consciousness". The Buddhists call it subtle mind. It is the only part of our consciousness which is real and constant. The rest fluctuates and is a product of our environmental and self-reflective experience.
Fall asleep, wake up, remember nothing. This is a non-experience that contradicts the idea that experience is universal.
That's just a memory thing, not non-existence. If someone gets brained damaged they won't remember their life but their life still happened.
Lack of experiencing only proves the negation of ego, not awareness. The subconscious is aware at all times, whether you're awake or asleep. Memory also has subconscious components. Just because you don't remember existing doesn't mean some part of you doesn't.