It's a very nice technology and is an example of permanent whole body genetic mutation via epigenetics.The issue is that it is irreversible..
The converse, a whitening substance does not exist yet but could exist in theory, by antagonizing the melanin receptors.
It can and should be undone. There is a difference between the identifier and the representation, android should render color skinned emojis in their yellow equivalent, as simple as that.
OK I challenge you to try to engage and bring constructive evidence then.
Give a summary of what steve jobs and musk have done to improve the human condition/world.
While Apple has achieved some moderately useful advances you have to divide the amount of progress given by the amount of money captured.
Apple has an almost negligible ratio in that regard.
Musk has achieved even less.
You make it sound it's true but it's misleading, the critics was because apple users were the beta testers. Letting plenty of time for the industry( headphones, etc) and users to adapt for their Android phone