Modern fruit is junk food. It has a much larger sugar content than wild varieties of the same plant, and was purposely cultured that way because people like large sweet fruits.
Look, I'm pretty sure that if I want something sweet, fruit is better than cake. I'm also pretty sure that if I want to never, ever "sin" regarding diet, I will probably die, because some jerk is going to find something wrong with boiled greens and then I won't even be able to eat those anymore.
Eat sparingly.