That's not to say that foreign productions are not worth watching, or that they're even measurably "worse" in terms of the viewing experience. The difference is ultimately not so much that it prevents them from being subjectively very enjoyable. But objectively speaking, they are unavoidably less accessible for the reasons mentioned above, and because of that, there is a hard cap on their potential to be interesting. A good foreign film will still beat out a mediocre domestic production any day of the week, but all else being equal, I think a good domestic movie or show will be more captivating than a good foreign equivalent.