Why is Aruba's population predominantly Mestizo and White, while Curaçao and Bonaire's are mostly Black?

I'm from Aruba myself (i know, ironic). I've always wondered why Aruba and the other two ABC Islands are so racially different from each other. All 3 islands are multiracial, but to different extents.

Arubans are generally much Whiter (European) and more Amerindian on average while Curaçaoans/Bonaireans are more Black on average. I do know know that Curaçao was a slave trading hub under the Dutch while Aruba was moreso used as a military outpost.

I can't find much information about this (although will continue researching), does any Aruban, Curaçaoan or Dutch Caribbean historian here know why this is?