People should stop liking what you don't like, right?
Honestly, I have no problem with smoking as long as no non-consenting person has to be subjected to the second hand smoke. That includes both people doing their daily business in the public in general (designated smoking areas don't count as you have to active walk there, I'm more talking about people smoking in front of entrances to businesses). That also includes people smoking in their homes when they have underage children. But if it only involves consenting people, then do what you want. (I'm even for legalizing many drugs with the same disclaimers.)
I'll give you the point about smoking indoors, I didn't even consider it because at least in the US I haven't seen a place where that's even allowed anymore in the last, 10 years?
Cars are also much more useful than smoking. (Compare what'd happen if cars were banned with what'd happen if smoking was banned.)
But of course you're right, cars are a problem. At least there are emission limits, and electric cars are being worked on.
That doesn't mean we shouldn't try to get rid of smoking. These are separate problems, they can be worked on in parallel.
But the world was in general a lot funkier back then.
In a shared space, balance and respect for other people's tolerances is the way forward.