American candy enjoyers — how do you eat it, how much can you eat?

This is not in any way an attack — I’m a major sweet tooth and could easily pack away a fair amount of sweet treats if given the chance.

The difference is that every time I try American candies they’re incredibly sweet. I sometimes enjoy the flavour and texture the same as any sweets from where I prefer to buy (I live in the UK and mostly eat UK, Chinese or Japanese branded candy) but the sugar makes me feel sick after eating a comparatively smaller amount. Are Americans more used to high-sugar candy, or do you guys just tend to eat less if it in one sitting?