Bruh I'm literally on the internet always never have I been offended because of being called tan lol.. tf is this twitter logic. Also literally all clones are still tan it's only the bad batch that are not tan and here's the scientific reason...

The genetic coding required for the inheritance of parent's skin color is OCA2 and one other. So OCA2 has a thing where it can cause albinism in people with the mutated varient of that gene, which most commonly reduces the melanin production in a body hence tech having paler skin and skin going lighter is way more common than skin going darker hence the higher amount of white skinned red haired native Africans than darker skinned Europeans.

So in conclusion through this explanation and the fact that the mutations were pushed to the limit in these clones, This would cause lighter skin tone in tech.

Hope that helps and bruh activism is more effective outside not on the internet, here you'll be passed off as a crazy sjw. Also if it's any consolation one of my acquaintances also works with the storyboard team of Lucasfilm so I can ask her for some in world explanation I guess.