I agree with your business model point.
If it were cost effective, moon shiners would be using it same as dope shippers.
Which brings us to the legalization point that there are simply far fewer moonshiners because alcohol is legal.
I don’t know about that. Government can raise sin taxes to the point that it incentivizes the black market in the same manner prohibition stimulates the drug trade.
There is huge business in cigarettes with counterfeit tax stamps compared to booze, partly I think because nicotine is more addictive and because smokes are more compact and because gov’t has found it easy to continuously raise cigarette taxes while the booze lobby has a much larger consumer/voter base to protect them from the perpetually revenue hungry politicians.