CLEAN : New Yorkers honor Breonna Taylor one year after her killing by police

The video addresses 400 years of racial injustice against Black people in America, highlighting the importance of the Black Lives Matter movement. It calls for action and awareness, emphasizing that Black lives matter. The video reflects on events from the past year, urging viewers to remember and honor individuals like Brianna Taylor, whose names continue to be spoken as a reminder of ongoing struggles for justice.

What is the significance of addressing 400 years of racial injustice against black people in America?

Why does the speaker mention that 'our lives do not matter'?