Saying we run on 'scams, like Nigeria' has nothing to do with racism, has to do with cold hard proven fact's. The guy said nothing about race, religion, gender, he merely included a State within his statement.

Nigeria counts second ( behind China) for the most internet scams and account hackings worldwide then any other country

Source: NY Times, NY Post, USA Today, Dept of State, Wikipedia ( although not really a legit source ), LA Times, Fox News....if you want anymore I'm sure I could find you some more.