What's the difference between the two British ones you link, and the British one I link? I'll tell you, seeing as it obviously went over your head.

The articles you link refer to live sheep being stolen.
The one I linked refers to sheep being butchered in fields, with carcasses being abandoned.

Another point you miss, and a very important point, is that if a farmer takes a shotgun to a white rustler, he has at most one angry family to contend with. If a farmer shoots a Muslim, he has a batshit community to deal with, and the left wing hate mob.

Don't underestimate how big of a problem this could be.