They had to face slavery, and whites had the authorities that colored people didn't.
Well the modern study of hsitory helps us not make the same mistakes as we did in earlier history.
The “exchange” introduced a wide range of new calorically rich staple crops to the Old World namely potatoes, sweet potatoes, maize, and cassava. The primary benefit of the New World staples was that they could be grown in Old World climates that were unsuitable for the cultivation of Old World staples.
"<span>It led to a large number of causalities on both sides" would be the best option from the list, since the war still dragged on although now with far more men involved, meaning more deaths.</span>
This should help you out.
