Yes, we definitely have too much sugar in everything, but as an amateur baker I will defend sugar in bread. Sure, you don't need it in a baguette or a rustic boule, but it is indispensable for a nice, soft sandwich loaf. It's not there to make the bread sweeter. It makes the bread softer, it boosts the yeast for a nicer rise, and it keeps it from going stale as quickly.
Granted, I don't use a ton of it. My favorite sandwich bread recipe[0] is 8g of sugar to 500g flour, and with my long loaf pan I typically get 20-25 slices, so maximum 400mg a slice. Quite good compared to my favorite supermarket bread at 2g a slice.
Sure, "bog standard" bread could have less sugar, but some sugar is essential for this style of bread.
[0] https://www.nigella.com/recipes/old-fashioned-sandwich-loaf, omitting the butter and oil and using cultured buttermilk instead of spoiled milk or sour cream. I say "omitting the butter", but I do still butter the loaf pan. I just don't include any in the dough itself.