Wow! Sounds disgusting! Well 'each to their own' as they say - although I do agree that sometimes the combination of sweet and savoury can be winner. At one time you could buy a type of crispy snack that was honey and mustard flavour. It was absolutely fantastic.
Totally disagree with your first assertion - 100% agree with your second. Why have brioche buns for burgers become so popular? It's way too sweet, you might as well use a doughnut.