The answer is #2-... that slavery was an improvement over living in Africa, a country of "savage despotism." America was seen as a preferred environment, being an "enlightened Christian" country. He stated, "in a word, our slaves are cheerful, contented, and happy".
Egypt is surrounded by desert and at that time it was a difficult task to establish strong trade ties with other nations as it was difficult to travel to the place, making the trading relationships not so strong to serve for a long period of time.