For the 3 points what I would say is:
1°) The scientific community doesn't even believe in psy (parapsychology), let alone rebirth.
2°) Of course hypnosis can make people aware of information they've learnt unconsiously, but what about people speaking an ancient language now disappeared, or giving precise details about the history of a place, details not even known by specialists.
3°) Cold reading doesn't explain very precise information, or even information unknown to all participants.
Now concerning why I think evidence for rebirth (and survival in a more general way) is that it radically changes our vision of the world, not less than the discovery of evolution or the copernician revolution.