KC doesn’t cause miseries to disappear, but it makes them ineffective
The material world, or material existential life, is filled with
threefold miseries: miseries pertaining to the body and mind, miseries
pertaining to natural disturbances and miseries inflicted by other living
entities. Human society is meant to create a spiritual atmosphere by
spreading the spirit of Krsna consciousness. The miseries of material
existence cannot affect the status of Krsna consciousness. It is not that
the miseries of the material world completely vanish when one takes to
Krsna consciousness, but for one who is Krsna conscious the miseries of
material existence have no effect. We cannot stop the miseries of the
material atmosphere, but Krsna consciousness is the antiseptic method to
protect us from being affected by the miseries of material existence. For
a Krsna conscious person, both living in heaven and living in hell are
equal.
Srimad Bhagavatam 3.22.32 purport