If you want to teach your students writing, why not use Tim Cook’s coming-out as an example?
His text is put in simple words, structured in perfectly sound paragraphs (look at the way he uses topic sentences at the beginning of each paragraph!).
Of course, writing simple prose doesn’t mean you have to do without metaphors:
“When I arrive in my office each morning, I’m greeted by framed photos of Dr. King and Robert F. Kennedy. I don’t pretend that writing this puts me in their league. All it does is allow me to look at those pictures and know that I’m doing my part, however small, to help others. We pave the sunlit path toward justice together, brick by brick. This is my brick.”
Discussing the struggle for equality in your English class could be another such brick.