The United States is a melting pot. Like John F. Kennedy said, it's a nation of immigrants. But Donald Trump wants to build a fence that clearly makes the statement: "You and I are divided. We're different, and you're dangerous." That kind of thinking stops human, civilized evolution. It's dangerous to create that kind of tension.
The forces that affect our lives, the influences that mold and shape us, are often like whispers in a different room, teasingly indistinct, apprehended only with difficulty.
You can never solve a problem on the level on which it was created. Insanity: doing the same thing over and over again and expecting different results. A life lived for others is a life worthwhile.