There are many who are not concerned about the sugar content of fruits and vegetables. From what I have found, there is little science that speaks against sugar content when the fruit is consumed whole. The various anti-inflammatory diets were all over the map regarding fruits. Most of us have enough foods to be wary of without having to worry about naturally sweet fruits. Just don't gorge out on sweet fruit.

As Jo*mar said, things like MSG are far worse. Even the natural sugar alternatives have drawbacks.