Interesting, but a tad overdramatic to predict 
the end of civilization because of a yaoi fan cel 
and the fact, that we like it!!  I must add that 
the magazine coverart is pretty overdramatized 
too. It IS a magazine cover!  

I think you have never watched Ai no Kusabi, and 
I am pretty positive that you never will. 
There are a few scenes of bondage in the anime, 
and believe me, you will not see one drop of 
Riki's blood. 

But bondage is not the main theme of this anime. 
It explores the love between "Master and 
Servant", a strong bond between two people from 
entirely different backgrounds and social 
situations. Because of the society they live in 
none of them can really "shed" of their expected 
roles and freely act out their love for the 
other, and thus they can only be united with very 
tragic circumstances.  

And what Drac was talking about it is this. 
While I can't imagine myself trussed up, some 
people do like to be tied up and abused in some 
ways. Then it is their right to have themsleves 
tied up by someone else. (Yeah, I know it is odd, 
but bungee jumping is not exactly "normal" 
either!)
Nobody probably will ever hear of it, because 
these are private matters. 
(So in a way we are peepers in Riki's and Iason's 
bedroom.  Uh-oh, hentai!!! ^^)

And then there is the kind of bondage that most 
people associate this word with. People tied up 
and tortured WITHOUT their consent. 
No, we would not condone these acts of violence!
None of us would want to watch an anime where the 
main theme is someone getting raped. 

And we could go on with this subject forever 
pointing at each other and yelling "intolerant" , 
for someone else's views on a subject would be 
always different then ours.
Isn't it great? What would happen to us if there 
was no one to argue with???!  Here is a little 
hint: "resistance is futile"
(yes I know, that was a bit overdramatic too! ^^)