Here's another great idea: Pledge to register as a Muslim if Trump creates a registry. I have already signed up and so has my wife. When Denmark was occupied by the Nazis, they issued a decree that all Jews had to wear a yellow Star of David. The king of Denmark declared that all Danes were created equal and he prominently wore one of those stars. Other Danes followed suit, making it much more difficult for the Nazis to persecute Danish Jews.