I'm not sure precisely what you're trying to say here - but my intuition is that you're saying "people will illicitly manufacture guns in Illinois and people will patronize them rather than drive over to another state to purchase guns."

If that is what you're saying (and please, clarify if it's not!) - it's worth knowing that both Wisconsin and Indiana are a 90 minute drive from Chicago city limits, so any illicit manufacturing has to compete with the ease of a relatively short drive to purchase in another state.

I think sometimes people forget just how close Chicago is to other states.