I hate to be a bearer of bad news but it's never going to end (in my opinion). Have you seen a group of say, 5 year old girls playing and there's a really lightskin one among them? Have you watched how these other kids and even adults treat the lightskin one?

The internalised white supremacy is already deepseethed from a young age and everyone, dark or fair sticks with the cards they're played or try to change their perception of themselves/others or even skin colour.