If you delve into the documentation for this NPRM, it gets even funnier. The FAA's proposed implementation is for a sticker (costing 50 cents) to be attached to the safety card
by the cleaning staff 
My reading (between the lines) is that the FAA considers this requirement rather silly too, to judge from the number of times the phrase
Congress has decided this is in the best interest of the nation appears.
As to whether any 'patriot' is going to storm off the plane upon seeing a Made in Brazil/Canada/France sticker entirely depends on how many actually read the safety card. In other words, none. Were the manufactured date to be similarly presented, I suspect nobody would get off either.
an aside
Actually, the data plate on DC-9s is conveniently located on the 1L door frame but I'm the only passenger I've ever seen look at it, purely for interest's sake you understand, when flying on a certain US airline whose predeliction for geriatric DC-9s of debatable provenance is legend
