The Furry Fandom has an unusually large proportion of openly bisexual or homosexual members, so there are more GLBT members than in most groups. However, saying that "most" Furries are not hetero wouldn't be quite right. It's closer to an even mix than a majority of any sexual preference.

Also, since most Furries are under of the age of 20, it's possible that the statistics are inflated a bit.