Something to be said for having a quick second or third or fourth shot or more when hunting Hogs. Hogs hang in packs and that one time in a hundred when they don't run away and decide to attack you'd be glad to have a semi auto rifle. IMO shooting a one and half to two year old (or older) Hog with a .223 is kind of foolish unless you get a perfect shot. Anywhere in the body and they are not going to fall. And the .223 isn't going to leave a big enough hole to bleed much for tracking.
Deer can be taken with a .223, I've taken yearlings with a .222, but wouldn't count on it doing the job on a full grown Deer unless you have a perfect shot.
You really have to ask yourself how many hunters are going to wait for a perfect shot? And secondly how many Hogs or Deer were shot never to be seen again using a small-caliber bullet?
Sure you can fill the freezer, you can also fill the brush with decaying carcases.