Batgirl is lesbian: Her room mate is transgender

Have things changed? Why are sexual diversities being included in modernised comics from such mainstreamers as DC comics? Is this incusiveness based on a belief that diversity is beautiful?Is it based on overcoming oppression?
Have a read of this piece from Adios Barbie.

In addition you may want to listen to this great TED talk 'Born That Way' talking about our made up binary gender limitations.