I loved watching Amos & Andy on black & white TV. I was disappointed when some labeled it "racists" because one of the actors wore black-face. To me, it is excellent comedy just as the Stooges and Laurel & Hardy, Abbot & Costello, etc.
Another disappointment was when they took the black woman wearing a bandanna off the pancake box. I see black women in my neighborhood frequently wearing bandannas. What the hell is racists about an item of clothing? Silly people.
You're correct. There were no white actors in the television version. Claims were made that the television show portrayed some blacks as "slow" and other as devious. Based on these allegations, that's all she wrote.