In America, there is a history of using "cultural fit" as an excuse to discriminate against socially marginalized groups (both those that have and haven't escaped economic marginalization in the intervening years). So that's another criterion that Americans will have trouble with: it's difficult to be certain that your lack of "cultural fit" is something fundamental to do with your personality or work style, or if it's some aspect of your identity that is unrelated to your work performance (something that an effective, if biased, employer and team might discover if you were given a chance).