That is true... There's no actual definition of what is and isn't a furry. Personally I don't like the suits either, but that's only because of their heads. I'd like someone to design a closer fitting rabbit mask so it doesn't look so creepy.
But seriously.... It doesn't have to be sexualised at all. It's about animalistic behavior, love of the planet, and generally being creative minded enough to consider it a possibility that animals walk on two legs ^-^