As thousands gathered in Denver’s City Park on Monday to celebrate the life and legacy of Martin Luther King Jr., speakers didn’t mince words: King’s message was not only about love and unity, they said, but it was about fighting for freedom and equality for everyone. That, they said, means taking action against the separation and imprisonment of families at the U.S.-Mexico border, mass incarceration, the Muslim travel ban and formerly proposed Muslim registry, anti-semitism, police brutality and the criminalization of homelessness. Participants in the Martin Luther King Jr.