Could be like putting Audrey Hepburn next to Kim Kardashian, and asking them to pick one. Over and over.
For me, what defines the soulessness of the frankenwines isn’t that they’re objectively bad, it’s how they all kind of taste and feel the same, regardless of producer, region, or even varietal. The 15.5% lush jammy pinot from Santa Barbara isn’t all that different from the 15.5% lush jammy Syrah from Paso which isn’t that different from the 15.5% lush jammy Cabernet from Napa, etc.
Pairs of artisan wine with corporate product will, if anything, mask that.
Instead, I’d suggest dividing your tasting into two groupings.
First, blind taste the the interesting wines. Let the group try to guess varietal, region, producer, etc. Drinking them against each other allows your tasters to connect with their nuances, winemaking philosophies, and expressions of terroir. It will also showcase the uniqueness of each wine in these flights. After you reveal, let them retaste if possible & give them data sheets on each wine: vineyards, winemaker, etc. etc. My bet is the experience of drinking all of those wines together will provoke all kinds interesting discussion, because each wine will be so distinct.
THEN
Line up group two (double blind if possible) - the soulless corporate wines. Take your group through the same process - trying to guess varietal, region, producer, etc. My bet is, on the first flight, they’ll be wowed by all that jazz and sizzle those wines bring. But as they move forward, it will become become a wee bit of a slog - as it starts to feel like tasting the same wine over and over.
You won’t have to “prove” a thing. Some people will prefer the wines of Group 1, some of Group 2 - but everyone should come away with a basic understanding, and appreciation, of the difference between an artisanal wine and a corporate product.