I don't think they are whipworms. Whipworms are about one inch long and brown. I've had and seen them. On the subject of whipworms, I discovered and also read in vet research that ivermectin does not kill whipworm, but albenza does.
I think your photos are rope worm, which I've also seen plenty of. Coffee enemas, vinegar enemas and Miracle-Mineral-Supplement enemas all cleared rope.