Translation of sandig

I hope you could understand my last letter to you. You see, when I write in Spanish I am not very confident. I always question myself and each and every sentence takes about fifteen minutes.
Once they see a foreign person, their primitive thoughts come up and they start to hate and dislike without any actual reason. Whose fault is this hate? Is the fault of the ones who are afraid.
After a long sleep we ordered a cab which took us from the hotel to the airport. We were a little sad to leave. The flight over the South China Sea lasted two hours. We landed in Hong Kong's new airport.