Tame a 2* boar, then as it breeds, kill off the non/one-star offspring until it's all 2* left. They drop guaranteed 4 meat per. I have a small boar farm, and it generates more meat than we can use.

As for food consumption, the AI will consume food even if you're out of range it seems. If this happens, the boars don't seem to breed, even though they consume the food. This appears to be a bug. As a workaround, I limit the amount of carrots I feed the boars, depending on how long I plan on sticking near the base that session.

Also, the number of boars per pen seems to be tied to pen size. Make sure you pen is large enough.

In any event, it doesn't seem enough of an issue to cause the rage fit of your post. :-D