ARO took a short phone opinion poll from voters in 5 of America's largest cities and concluded that African American voters believed Joe Biden was more racist than Donald Trump. The poll consisted of a majority of African American individuals from African American dominant areas. The polling cities included New York, Los Angeles, Chicago, Houston, and Phoenix.
The video of his comments can be found here: https://www.youtube.com/watch?v=UzxpjIGOp_w
Additionally, the pool of voters agreed the comments were "condescending".
Here is the American sentiment on this topic: