Depends on how the teleportation worked and also how our consciousness worked. I’m not against the idea of creating exact copies of myself who, from their point of view, are indistinguishable from the me they were copied from. I am, however, against the idea of deleting the original me, which from my point of view would be indistinguishable from death,
Transferring consciousness is different from copying consciousness, even if the copy is flawless.
This is the same answer as the question of uploading our consciousness to a computer.
To my limited understanding, the us that exists is just a network of neural connections. If you could somehow copy that network exactly, you could conceivably create a complete personality copy of an individual, but that’s not the same thing as moving their consciousness.