SINCE Robert E. Lee betrayed his country, the US government confiscated his estate overlooking DC.
Ever SINCE, the property has been a cemetery for our soldiers. From the Civil War onward.

SINCE the Black Lives Matter movement, Arlington has accelerated its efforts to stop celebrating Lee, including:
Washington-Lee high school was renamed Washington-Liberty.
Lee Highway was renamed Langston Blvd.
The Arlington Flag/logo no longer features Lee’s house (named Arlington House by its prior owner).