As a noun, it still isn't. As a verb, it is.
To "Americanize" either means "to change who other people are to who we are because we are sooooo much better than they are", which is arrogant, or something closer to "to simonize", which puts a thin but shiny veneer over a society that will wear off in heavy weather.
How about, "to each nation its own democracy", and no more of this trying to hit moving targets with our magic wand of liberty?