Comment by js2

While I agree in principle, it’s not uncommon to add sugar to homemade tomato sauce to balance the acidity[1,2]. Also, for making sauce, good canned tomatoes (which are canned ripe) are plenty tasty.

1. https://www.cooksillustrated.com/how_tos/6605-using-baking-s...

2. However this is apparently controversial. https://slice.seriouseats.com/2013/03/poll-sugar-in-tomato-s...