Would it not be silly to think that 'they' traffic drugs to Chicago all the way from Mexico but there is no gun tafficking going on?
Certainly some enterprising criminal is going to gun friendly states, finding guns on Craigslist, meeting people in Walmart parking lot with cash and buying guns to take elsewhere to be sold for a profit. If I'm thinking about it somebody is already doing it.
How large or small of a percentage that is is most likely extremely small when compared to just plain ole fashioned horse trading going on amongst honest folks though.
The most I'd guess is that in gun-friendly states, the guns don't go too far. A Miami gang-banger is probably gonna use a gun he stole from a Miami source.
In restrictive states, harder to say. Guns are durable items and it could be that recovered ones were locally purchased prior to restrictions and just sitting around in someone's closet. Along with ones shipped from other areas.
As you say, it's the price of freedom. In restrictive states, restrictions aren't new. New York and Illinois have always been unkind to gun owners, yet just now they blame Georgia, Florida, etc for their crime problems. Deflecting the blame from decades of failed social policies I guess...