Owning a 2008 Mercury Milan (essentially a 2008 Ford Fusion) I have noticed also that this is true. Ford has production facilities in Mexico, Brazil (I believe) and Europe, in addition to a close relationship with Mazda which they may have some stake.
For Ford, it seems to have worked out well. Their 6-speed automatic is from what I’ve heard a very smooth transmission and their engine technology is very good and getting even better in 2010+. I’m sure Mexico makes assembly more affordable and at least with my Milan, which I bought used, build quality is pretty good.
He clunkered a 24 year old work van. I, of course, negotiated the deal. I once again embarrassed my father, and almost made the sales manager cry, but they can make their profit on somebody else.