Original sentence: His work in this area was criticized by researchers and civil rights organizations as being racist in nature.Since 2002 he has been head of the Pioneer Fund, a research organization that allegedly promotes scientific racism
Edited sentence: His work in this area is highly controversial.It has been criticized by numerous researchers and civil rights organizations as being poorly researched and racist in nature.Since 2002 he has been head of the controversial Pioneer Fund, an organization that has been widely criticized since its founding in 1937 for financing research that promotes scientific racism, and which has been frequently associated with racism and white supremacy