Careful marketing is tricky the phrase "made in America" may not mean what you think it means. I'd say you're looking for "Product of USA" which means a totally different thing i.e. actually made in the USA.

I know here in Canada on investigative consumer shows it's been shown "made in" may simply mean a product was assembled from parts made in another country or maybe 51% of the product was made in your country.

Preying on a person's nationalistic feelings is a powerful marketing tool to get people to buy a product.