Yes, many physicists. All physicists who accept the necessarily logical implications of Quantum Mechanics. As Prof. Stephen Hawking stated, “The Many-Worlds Interpretation is trivially true.”
No, it simply requires a great enough degree of quantum coherence to concentrate enough energy onto individual baryons using electroweak quantum tunneling. Solving the problem of quantum computation on a practical scale effectively also solves the problem of life annihilating baryons.
I have opened such a hospital, as I am extraordinarily hospitable. The name of that hospital is called right here, right now.