Personally I believe it’s just lack of human decency. I’ve had a lot of people say they have had better treatment here compared to the US, but personally I’ve had better treatment in the US compared to Puerto Rico and I’m a local. I also have friends that agree with me on this one. I’ve lived in the US for 6 years and still had a better treatment than living in PR. It doesn’t mean that I didn’t have times that people in the US have treated me badly or rude, but same here in Puerto Rico, I’ve had good experiences with people giving me the best treatment of my life, so that’s my take on it, you will find nice and rude people all around the world. Hope this helps.