The thing is, “rest of the world” is just not a thing that much conservative media gives much time to, apart from in terms of conflicts / threats.
It never fails to astonish me how many right wing talking points are demolished by just remembering that the rest of the world exists. “All gun control does is stop law-abiding people having guns”. “Universal healthcare will bankrupt the state”. “The crime problem is because of a lack of religiosity”. And on and on.
I doubt that many FOX viewers will have stopped to realize that “the R&D argument” means subsidizing the rest of the world, even if it were true. And many would be surprised to learn how US pharma fees compare to other countries (and of course it would be “fake news”).