You wrote: I agree with Witnessism on: ... when you die, you are dead and not living somewhere else
Are you sure you agree with the Witnesses' definition of death? As you know, the Witness definition of "death" is total nonexistence. So much so in fact, that the Witness definition of a "resurrection" is God creating a new copy of you from His memory. A copy which they say will have all your old memories but will not include any actual part of the "old you."
Most Christians strongly object to this JW definition of a "resurrection." They say that such a newly created copy of them would not really be them at all. They say that for the "resurrected" person to truly be "them" there must be some continuity of existence from the original person to the resurrected one. They also say that the JW teachings concerning death and resurrection are not biblical. I agree.
The Bible teaches that everyone has a "spirit" or "soul" within them which survives the death of their body and "returns to God who gave it" at the time of their death. (Ecl. 12:6,7) If this is not the case then Jesus' words recorded in Matthew 10:28 make no sense. There we find that Jesus said, "Do not be afraid of those who kill the body but cannot kill the soul." If we are, in effect, nothing but bodies, as JWs teach, and if no part of us survives our deaths, as JWs also teach, then those who kill our bodies do, in fact, kill our souls. But as I said, the scriptures indicate otherwise. For instance, Luke 23:46 tells us that just before breathing his last breath, "Jesus called out with a loud voice, 'Father, into your hands I commit my spirit.' " And Acts 7:59 tells us that "While they were stoning him, Stephen prayed, 'Lord Jesus, receive my spirit.' " Do you really think that when Jesus and Stephen spoke the words they did that they thought no part of them was going to survive the death of their bodies?
You may also want to read 1 Samuel 28:7-20 without wearing JW glasses. There we find that after the death of Samuel, Saul consulted a spirit medium in order to seek Samuel's advise. This passage of scripture clearly indicates that Saul's attempt to contact Samuel in this way, following Samuel's death, was successful. Verse 15 tells us what the departed "Samuel said to Saul." Verse 16 also tells us what "Samuel said" at the time. Verse 20 tells us that, following their conversation, Saul was "filled with fear because of Samuel's words." JWs say this must have been a demon impersonating Samuel. But this passage of scripture says nothing of the sort. Rather, it repeatedly tells us that "Samuel" himself was the one who was then speaking to Saul. For reasons which are quite clear to anyone who reads this entire passage and its larger context, God allowed Saul to successfully communicate with Samuel's "soul" or "spirit" following Samuel's death. Saul could not have done so if no part of Samuel had survived his death.
The scriptures indicate that our "souls" or "spirits" normally "sleep" following our deaths, prior to the time we are resurrected. (Acts 7:60; 1 Thes. 4:14,15) Thus we can understand Samuel's comment to Saul, "Why have you disturbed me by bringing me up?" (1 Sam. 28:15) I believe that the Bible indicates that a "resurrection" occurs when a person's departed spirit is again united with a body of some sort. In the case of Samuel, evidently God allowed his spirit to temporarily inhabit and speak through the body of the witch of Endor. To me, this Bible passage and others indicate that our departed spirits remain unconscious or "asleep" until they are put into a new body, much like a piece of computer software remains "inanimate" until it is "animated" by a computer's hardware.
JWs love to quote a verse which says that "the dead are conscious of nothing at all." (Ecl. 9:5) But there is a big difference between a person being "asleep" or unconscious and a person being nonexistent, as JWs say all who have died are. As I think I have shown, the scriptures indicate that JWs are wrong about this, and that there is, in fact, a continuity of existence from the original person to the resurrected one.