Fiction. Sushi is made with fresh ingredients in proper sushi restaurants. The fish is usually sourced from good places and prepared hygienically. The idea of a sushi lover being full of worms is just a scare - mongering statement. There are regulations and procedures in place to ensure the safety of sushi consumers.
Fiction. Although there is a very small risk of parasites in raw fish used in sushi, it is extremely rare for someone to be 'riddled with worms' from eating sushi. Most fish for sushi is carefully inspected and prepared.
Fiction. When you consider the fact that sushi has been a popular cuisine around the world for a long time, if it was common for sushi lovers to be riddled with worms, it would not be so widely consumed. The sushi industry has safety protocols in place. From the moment the fish is caught, through processing and preparation, steps are taken to minimize any potential risks associated with parasites or other contaminants.