Hershey's chocolate is now just rancid swill that just tastes of sugar with a hint of vomit.
Swapping refined sugar for HFCS 55 (the most common type) is basically an even trade sans some extra water content in the syrup and palm kernel oil is just saturated fat but sourced from a plant instead of animals.
I don’t think anyone is gonna argue that a high sugar and saturated fat diet is healthy but no worse than the same things sourced from other places. In an alternative universe palm oil and corn syrup would have been the standard and people would complain about the switch to lard and white sugar.
b) HFCS is sourced from corn, which means pesticide residue.
c) Palm oil also leads to fatty liver.
They may be an "even trade", but certainly harmful to one's health.
I absolutely agree with you that sugar and saturated fat in anything other than moderation is harmful to your health but that, in this case, the source of those things doesn't really matter.
They say "regulations are written in blood," which makes you wonder what "new car smell" was composed of 50 years ago.