Why do you list psyllium? RP has never said it is good or ok. As for citrus, he advocates consumption of the juice, filtered juice for just that reason. Carrots I am not sure but I think he counts on them adsorbing anything bad that they may contain.
But he is very clear that soluble fiber=bad.
Psyllium fiber is mentioned alongside citrus and other fibers. I thought Ray ate oranges. He only drank their juice?