Hard to answer this one. It's by no means a black/white issue. A multinational based in Europe, it's easiest to say Wrangler's now a Dutch product. Looking at 'domestic content' as a metric does not provide a clean answer. How deep into the supply chain is that evaluated? For instance, if Magna assembles a variety of the components they supply to an OEM in the U.S. (say, an IP), but most of the components they use in that IP are foreign-sourced, is that 'American' content? This is an argument that's been around a long time. Just ask Harley-Davidson. An 'American' company that's increasingly sourced foreign parts for decades now.
Do you shun Jeep (at some point) because China gains a controlling interest? What happens to our friends/neighbors who work at the Toledo Jeep plant? Or the thousands in the aftermarket industries? Shun them, by extension, too?
For me, if China grabbed control, I'd likely shift my focus toward Bronco. Assuming, big assumption, that it proves a durable and viable alternative.