Well, that's sort of to be expected. :-( All the foods you've mentioned are highly processed, and engineered to be shelf-stable, tasty, and use cheap, good tasting ingredients. I wouldn't even consider them food anymore, more like highly engineering edible dopamine stimulators.

Opposed to that, a grapefruit does not stand much of a chance. But if you kick processed sugars for a few weeks, things start slowly tasting better, or so I hear. I've been trying to do that, but sugar is in almost everything these days

If it isn't convenient (timely and open at desired times), tasty, and inexpensive it won't compete on the three metrics that the actual competition is winning on.

I'll agree they're abundant, but are they actually cheap? How much money in those products do you have to eat to feel full, vs healthier food?

It's easy to pound down snack foods and desserts but still feel snacky, and that's just flushing money down the toilet while adding to your personal carry-on burden.