as informative and enjoyable that was, (I fav'ed it on my account =^_^=) it's more describes furries.
I think if we had a theme, it would something you sing to, dance to, rave to, something that everybody would love to hear. Caramelldansen seems to be huge on the internet, and I've seen more than my share of furry dancing versions.
Though on the other hand it might be too commonplace to any uniqueness as a theme...
EDIT:
also, something upbeat and clean, like a song where they drop the f-bomb 20 times might not be a good idea, because, although some people might like it, might give us a more negative then we already have. But thas' jus' me.