Given Trump's skin colour is comparable to that of wealthy retirees in the South of France I'm not assuming there's a chemical explanation for it.
You are. All the people bleating on about 'orange man' are. Just because his skin isn't the same colour as yours isn't a valid reason to mock him, unless you're a racist.
I don't care if the same 10 idiots keep voting down my posts, I'll keep stating it: Racism is bad. Don't be racist.