I amend things when necessary, and am in the process of doing so regarding this thing about "subsets." Okay?
Okay. I hope that in the process of amending you also do some understanding. Your insistence on putting the word "subsets" in quotation marks suggests that you still consider its meaning putative. This is a bad habit.
I am a mystic. I have a different perspective, yet my source of information comes from the same source as everyone else's, from somewhere inside the mind. This "is" the beginning of the human perspective. Now, can you find fault with the way I've expressed this or, do you simply disagree with it? You really shouldn't let the one interfere with the other.
I simply disagree, but I also believe that what you are saying does not actually make much sense, though that may be because I am not a phenomenalist. I do not believe that I get all my information from within my mind, but that the world I inhabit is a real one which I experience as a thing which is, for the most part at least, outside of myself.
You certainly have a different perspective. Perspective is necessary to avoid being overwhelmed by undifferentiated experience, but perspective, don't forget, can be a form of distortion. Those tracks don't really meet at the horizon, you know.
In any case, I believe you rely far too much on your own mind as the source of information that is better acquired from outside. If you rely on a private lexicon to describe your private world you will make poor arguments.
Of course if you are a mystic, your position cannot really be argued. As far as I can see it cannot be disproven, but as you must have heard somewhere by now, a thing that cannot even in principle be falsified cannot in principle be proven. Your position appears to be impervious to logic. Now if you do not agree with that last sentence, feel free to challenge it, but that can be done meaningfully only by actually practicing logical discourse in a logical way, and that cannot be done using language as carelessly or as idiosyncratically as you are accustomed to doing.
By the way, do the quotation marks around "is" above demarcate it as a special kind of "is?" A Clintonian one, perhaps, open to multiple interpretations? Is even the fundamental term of existence only putative, or is this a special newfangled "is" from your private dictionary?
Just in case you have remained blissfully unaware of common usage, I will point out that, in addition to the regular denotative use of quotation marks, such as denoting an actual quotation or a word or phrase that has just been referred to (see the end of this sentence for an example of the latter), writers frequently enclose a word in quotation marks as a form of disparagement, a punctuational equivalent of the phrase "so-called." I might, for example, refer condescendingly to <Iacchus and his "philosophy"> as a way of making it clear that I think your so-called philosophy is [well, rule 8 forbids me, of course, from using the word].

If this is not your intent when you enclose words in quotation marks, you should probably drop the habit. It's a bad habit anyway.