Smoking became disgusting when the campain against smoking became effective.

Bullshit. My non-smoking parents called smoking disgusting in the 80s and probably before that. It became disgusting when addicts smoked everywhere without consideration for others, like in restaurants or on trains.

So what many people perceive as a disgusting habbit today is the effect of conditioning and propaganda. Smokers also had long lasting relations with non-smokers, now it is unthinkable a smoker and a non-smoker to even go out for a coffee together.

The fuck are you on about? I have no problem doing stuff with smokers and have had nobody ever claiming otherwise. Just don't smoke in a way that affects me.

I am also surprised this discussion has gone so far so long and nobody has mentioned sugar and its bi-products (soft drinks, candy, sweets, ...) Is there such an addiction recognized and known as dangerous?

Nice whataboutism. Btw, as far as I know, the same bodies pushing for regulating smoking and drinking more are also in favor of addressing this issue. And now matter how relevant it might be, your just detailing here.

Type-B diabetes has become common even for kids, especially in the west.

Sorry, I know types 1 and 2 only.

The sweetest thing you will find in China doesn't even taste sweet, and if you offer a middle eastern pastry to a Chinese person they put half a spoon in their mouth and think they are about to die.

Which China?