A solid response: http://birthmoviesdeath.com/2016/10/04/hoth-white-why-diversity-matters-in-star-wars
He said the diversity, no matter why or how, is a good thing. And when he says “in a weird way I think Star Wars has always been immune to the whole ‘race and gender’ thing.”, He’s right. Kids of all colors and races have always loved Star Wars despite the mostly white cast. He’s not saying "All the characters should be white and diversity is stupid."
And in the “sex” part, he’s clearly talking about romance.
I don’t see what there is to be angry about.