Why sonething's legal and something's not?
 

Zoo niche is forbidden by thousands of laws but none has nothing agains interracial niche...

Interracial and zoo are two niches related to sex acts participated by different kinds of creatures. Why sex with other race is legal and sex with other lifeform is illegal?

We're all living under one sun: humans, animals... All fucking... All having fun with genitals of each other... Horses and dogs cumin just like humans during sex... Why zoo is illegal? Why then interracial sex is legal?