I already demonstrated the problems with comparing a human consciousness to anything physical when I mentioned the philosophy students discussing a human soul.
When you say what's the point in existing after death, well exactly. In fact what is the point in existing at all? None of it makes much sense.
On the subject of which 'you' should survive, I don't think anyone is in possession of a set of rules or instructions.
I am simply saying, I don't know. It's a personal belief and I'd rather be at the beach than arguing about it.