This sucks so much. Nature is interdependant, they learned that in California when bringing back the kelp beds brought back the tuna and other fish, and the otters, what is extinct can be brought back. As the Canadian studies have shown, wolves do not kill animals (with the exception of bachalor wolves) unless they are sick in some way - elk and caribou examined all had either bone disease, blood disease, or other invisable diseases. There is a program set up to compensate a farmer or rancher for wildstock (though the amount claimed for these wolves would need to teleport and eat five times their body mass each day) - it is a 'sure sale' for the rancher so a win-win and as you point out, now the bark is not being eaten, and a new eco-system is present.

How many times will they need to import wolves to figure out that killing everything larger than a breadbox isn't the brightest idea?

Sorry I got so passionate.