I've got no idea what you guys are talking about. As I had the opportunity to explain to the Wild Mogs at Caramulo (at the event's dinner and while tasting some good red wine they never previously heard about), portuguese consumers don't know foreign red wine, only consume portuguese red wine, and portuguese red wine is only consumed by portuguese.
I guess we drink it all, no need to export. And we love our wines, no need to import

(map taken from this article:
https://jakubmarian.com/wine-consumption-in-europe-by-country-per-year-per-capita/)