“The consequences of any interference of a culture are long lasting. Just look at your own country and the animosity of races.. hardly resolved after how many years since your civil war”. No your wrong, the current animosity comes from the early years of the 20th century. Woodrow Wilson started segregation. African Americans came a long way up to that time, the Postal Service was integrated for like 8 years. Race issues exist where countries have a number of races, we don’t do genocide the issues you see exist in part because we see them. In America they get on the news and play because it brings in ratings. It is easy to judge the other side when that side gets everything documented. Look at the riots in France the last 10 years.