From the article:

"However, the number of female performers in folk who are openly lesbian, bisexual or actively pro-gay has been rising in recent years and seemingly at a higher rate than in other styles of music."

Are there any female performers (really singer/songwriters) who don't fit one of these categories? If they address social/political issues at all gay rights can enter into it even just a little.

In this article Women's music festivals seem to be treated as the total of folk festivals, instead of along side of an somewhat overlapping.