It could be beneficial for all concerned but instead we learn the wrong thing. Mexicans have an evolutionary advantage because they have a stronger sense of community and family that they lose when they immigrate to the U.S. Their life expectancy goes down to our level. We could learn from that but it is difficult to change that it could go a better way. The history of people with disabilities is a great example. Here, there are people that have been in detention all of their lives and still are, AND we tolerate that as normal. It is only a fairly recent policy change that is making an effort to recognize equality. These gains are being threatened by the Trump administration on several levels. Border and immigration is just one. Policy is fairly easy to change, Laws are more difficult, and attitudes take a really long time.