When are we not ourselves?

[Whateverist]

The bottom line is you are not the same person that grew up in your parents house. Your parents are not the same people that raised your former self.

So what? For that matter, before we were born we assembled ourselves in the womb from materials provided by our mothers. Just another extraneous fact like the one you mention. Bottom line: so what?

Everyone is a copy of themselves that walks around with the illusion that you are you.

Is the original you under any less illusion?

When you die you don't really die in the sense that you are familiar with. You die atom by atom everyday. When you die in the traditional sense all that happens is there will be no more copies of you being made.

Strange as that may seem to you, it makes no difference to me.

Life is really unimportant and an illusion. Nothing you do or say means shit. You are not even you.

This doesn't follow from anything else you've said. Your argument is basically of the form:

P1 Extraneous fact
P2 Extraneous fact

C What you already believed, but unrelated to P1 and P2.