We didn't really say we were "family friendly", that was the media. Additionally, zoophilia doesn't make members as a whole less welcoming. In contrast to that 1 in 6, a good 1 and 1/2 in 6 (28%) ACTIVELY support animal rights.
As for porn, in proportion to the rest of the fandom or in general? In the first sense, you're likely incorrect. In the second sense, it already is (due to artists actively making said content). The current motive to join the furry fandom, though, is because we make people (other than anti-furries and skeptics) happier.