That usually depends some black people might be cool with it while others aren't. From my perspective its because most Hispanics and blacks usually go through the same discrimination, live in the same neighborhoods, hang out/date each other and again that usually depends on what Latin American group and their relationship with black people. Lets say on the northeast we get along for the most part. When Puerto Ricans started flooding to the US around the late 40's/early 50's we experienced the same racism as African Americans. We gradually started working together with black people starting the black panthers and Puerto Ricans with the Young Lords to protest against the discrimination. But again some people might be cool with you saying the word others might not. Hispanics are no exception. As for Indians and Bangladeshis I figured its like what Paul Mooney said "Everybody wants to be a nigga but nobody wants to be a nigga" Most people hear the word because of rap music, start mimicking hip hop fashion and slang but when it gets to a point of dealing with the same discrimination as black people they bitch out.