My first thought isthat this belongs in philosophy...
The trick for seeing that teleporting ok after all is to be steadast in one's monistic physicalism!
What am 'I'? 'I' am not the atoms in my brain; 'I' am the information manifest in patterns of activity in my brain.
That is to say my memories, hopes and fears, everything that makes me 'me' is encoded as patterns in the 'dancing of my brain atoms', I am not my brain atoms; I am what they are doing.
When I sleep dreamlessly or am put into a coma that dance stops. I'd have no hope or fears when I am comatose even though all my atoms are present ; but they aren't dancing in the right way.
Unless you believe in ghosts there is only ever matter and its activity. A teleporter only has to extract enough information to recreate an arrangement of atoms so they will do the same dance as before because that is all we are - the dance of atoms. You and I are a dance of atoms that thinks it's a person.
The teleporter cannot kill you because the you you think you are is an illusion. We are each of us just a pattern of dancing atoms.