Rice and peas/beans dishes are popular in the Americas wherever blacks arrived and are also in Guyana. Yet he screams that all Guyanese blacks did was eat fufu.
You are really living in an alternate universe. Look around you, even the same one agreeing with you made sure that they live in non black neighborhoods. Ask d2, django, tola and others where they live and if they answer truthfully you will note that their areas are devoid of blacks like you. They only come here and give you lip service and then go home to their white neighbors.
Yes it is documented that the Guyanese Blacks diet was whatever the slave masters provided, rice was not part of it originally, even though later on the slavers tried to introduce rice production to supplement.
Look at this site and do a find on rice, not 1 hit. Now go argue with the people at liverpool museums.