Depending on his denomination, that is probably a legitimate distinction. Pork is forbidden because of cleanliness/purity laws so there's no harm in feeding it to non-believers as long as you don't partake yourself (and also I think, but I may be wrong about this, it is permissible to eat haram foods if there is no other food around and you would otherwise starve). On the other hand alcohol is forbidden because it destroys lives and communities, and there are never circumstances where it is allowable, so by serving it you are enabling something that is very harmful.
no subject