Tomato leaf curl or Little Leaf Syndrome? Why are my new tomato leaves stunted?

There is something wrong with the new leaves on my San Marzano tomatoes. They’re not opening, remaining tightly curled on the tips of new growth. The plant has also stopped growing☹️ My top two guesses are Tomato Leaf Curl and Little Leaf Syndrome, and neither of them are good news. My best option is to dispose of the infected plant and start over with fresh soil.