Feral hogs are legally hunted at least in the south, and growing up I knew many people who hunted hogs regularly. Boars are often not eaten because pork from uncastrated hogs is more likely to have boar taint which makes the meat unpalatable. Reputable pork producers only butcher gilts and barrows (non-reproductive hogs) to avoid this.

There’s also the fact that unfinished (not fed for slaughter) pork is much more lean than pork you’d get at the supermarket, but some people care more about this than others.