If you have faith in what Buddha revealed about all sentient beings has the un born Buddha nature mind
. However their Buddha qualities are not being revealed/ emerged due the stains that diluted their minds
The stains caused by afflicted emotions and also dualistic mind that caused the karma (habitual mind streams patterns repeating)
However soon they are able to clear away those stains and return /found their natural unborn mind.
The clarity of mind will lead them to the awakening mind. The mind of wisdom and great compassion.” Maha karuna.
Hence, everyone on this earth – be they Buddhist or non Buddhist or whether they had learned and heard dharma. They are potential to discover their own inner natural unborn mind. When the stains are being clear away.
Teaching of Chokyi Nyima Rinpoche, May 2011, KL