Nationality/Racial Diversity: Pac's resume>Floyd's

So, the whole "Pacquiao hasn't faced an African-American" thing got me thinking. Pac vs Floyd, who has more nationality/racial diversity on their resume? Pacquiao has fought fighters who's race/nationality come from: Great Britain, Eastern Europe, Middle-East, Asia, South America, South Africa, Oceania (Australia), Africa and North America Mayweather has fought fighters who's race/nationality come from: Great Britain, South America, South Africa and North America So why is it that Floyd hasn't faced as much racial/national diversity in his career? Has he been sheltered and kept fighting within the confines of America and it's neighbors with only one visit from an opponent that doesn't live next door? We've witnessed a lot of fighters getting exposed once they face so-called lesser European opponents, I wonder how some would fair in the asian competitive seen. At least Mexicans aren't afraid to go and mix it up over in Asia ( jorge linares, montiel etc)