Crush videos are only illegal to produce, not to possess, view, distribute, or sell. It's not the video part that's illegal, it's the crushing act itself. Thus crush video sites are not illegal in the US. Since this has been affirmed by SCOTUS (and by a large margin), it's pretty much ironclad now and no state law can ban it.
Let me make this clear. Crush videos are not only not illegal, they have been confirmed as a constitutional right, nationally.
While it's generally illegal for the most heinous ones to be produced anywhere in the US, at least to certain species, they can easily be produced overseas and then distributed in the US.
Bestiality porn is legal in 49 states. The only state it is banned in is Oregon. Since it hasn't really been litigated much, it's never gone to SCOTUS so there is no national consensus on it.
Having sex with animals *did* become illegal in Washington because of Mr. Hands, but the video itself is still legal.