How does our (U.S.) history with racial injustice impact what we’re experiencing today, and how do we overcome it? Please read details.?

As part an effort to memorialize victims of lynchings as well as certain other aspects of history that have traditionally been whitewashed (pun intended) from the curriculum, an organization in Denver, known as the Colorado Lynching Memorial Project has recently erected a sign in downtown Denver that reads:

On November 16, 1900, a white mob abducted a 15-year-old African American teenager named Preston Porter Jr. and lynched him near Limon, Colorado. At least 300 people attended the public spectacle lynching.”

This organization is also sponsoring an essay contest at Denver Public Schools using this question.

I’m striving for civil, thoughtful conversation.

Edit: typos