So actually it is, but not in the way that it applies to other countries. The First Amendment is a a flat limitation of Congressional power, not a rights grant

So actually it is, but not in the way that it applies to other countries. The First Amendment is a a flat limitation of Congressional power, not a rights grant. So in that way, it is globally binding as it applies to laws that the United States Congress may make as they pertain to e.g. US citizens residing in Canada, or really even Canadians at home or in the US.