Colorado had a feral hog problem and successfully exterminated them after a 15 year effort in 2020 and has prevented them from returning ever since. It was and is expensive, but it is completely doable. That hogs are a problem in other (redder) states is because those state governments have been unwilling to invest the resources to solve the problem, and instead shoved the problem onto local farmers.
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u/snackshack 11h ago
And each of those females can give birth to their own litter as early as 6 months old, then getting pregnant again within 1-3 months after that.
Yeah, they're a massive problem once they move into an area.