They still make most of their highest-priced models in this country.
I understand your quote marks around "shoe company" are asterisking your comment to refer only to that handful of Goliaths who've branched out into all sorts of apparel-related sports promotion, but that's begging the question.
Beyond that, this whole question doesn't speak at all to my bigger point: about Oregon's program vs. Notre Dame. At ND, athletics are mostly financed by the university. They're not the business model of, say, a pro sports team owned by the TV station that broadcasts them, or the beer that advertises on their telecasts. Oregon substantially is.