From what I've seen, Chile is a relatively safe and intellectually free place to live. They aren't as progressive on LGBTQIA tolerance as say the west coast of the US, but they are slowly getting there.
It isn't dirt cheap though. A house in a nice part of Santiago will cost you around 300-500k (USD).
Yes, $2-4k/mo on average in Santiago[1], and even lower in the regions. I'd suggest going remote because it's one of the few developed countries where you can get a visa without a local employer. Also, the quality of life is higher outside the capital.
It isn't dirt cheap though. A house in a nice part of Santiago will cost you around 300-500k (USD).