The fandom is not based in any way on NSFW, all that content is just a consequence of rule 34 and the fact that the fandom is one of the largest fandoms online and exists mainly thanks to the internet and art. Also any irl sexual activity rarely involves a mursuit (sexual fursuit) because there's no desire and they're expensive (even a normal fursuit can reach $10000 pretty quickly).

Also it's generally agreed on that "coming out as a furry" is not really a thing, being a furry is just a hobby (or a job for some) not a sexuality, not a gender, just a hobby