It is not 'faulty logic.' I am defining a thing to exist if it's constitute parts exist. That's my definition. You seem to think an apple is no longer an apple once you take a bite.
As to your arguments, they all rely on a notionof what 'you' are but never define it, so all of your arguments are rather circular.
1) circular
2) starting to approach a definition - 'you' exist once 'you' can 'experience things', but this is stillpoorly defined since it relies on a notion of 'you' without defining it.
3) agreed, we have different words for the same thing to more precisely characterize it / it's condition. But I don't see how this even comes close to being relevant to definition of existence.
4) debatable and also not a definition of existence more a definition of life. So are you saying 'you' are your 2 chromosomes that encode a person?
5) opinion, totally irrelevant.
6) confused. are you agreeing with them or not? you're also claiming here that you aren't your thoughts or your cells. So you still don't have a definition of what you are.