The death of Schopenhauer

There is only one classification that I have been able to find that seems irrefutable, impossible to dismiss. In the case of most polarized dichotomies, if you change your viewpoint on them, the opposition between the extremeties seem to dissolve. The only one I have been unable to find such a resolution to, is the division between existence and non-existence.
This is what leads me to believe that this might be the most basic fact of the universe. It seems an intuitive and correct assumption to state that existence is good, or positive, and non-existence is bad, or negative. If both these assumptions are correct, it follows that everything good is connected to existence. We might even take this one step further and state that the will towards existence is the foundation for anything that might be called good in the world.
And when I say everything, I mean everything. I´m not only talking about good in the moral sense, but also good as in quality, as in skilled, as in beautyful. Everything that is to be good, in any sense of that word, needs to have as it´s ultimate goal, the will to exist.
I need to make one remark before i continue. The will to existence must not be confused with the self preservation instincts of living beings. While this instinct most certainly stems from this will, they are not excactly the same thing, as the instict of a single individual is slightly perverted, by resistance caused by the tendency in the universe to seek non-existence, to target the existence af that one individual. Pure will to existence is a will to preserve the existence of All, of absolutely everything.
I will continue this line of reasoning at a later date.