People I respect use the term decolonisation so I'm trying to keep an open mind about it, but I'm unclear what it means and suspect there may be a motte-and-bai

People I respect use the term decolonisation so I'm trying to keep an open mind about it, but I'm unclear what it means and suspect there may be a motte-and-bailey strategy at play around it. Could you explain where the dividing line is between decolonisation and cultural segregationism?