The following is a kol korah regarding smoking, from the most widely accepted rabanim of yesteryear. Notice, smoking isn’t forbidden, it’s extremely frowned upon, and people are urged not to smoke and to stop smoking if possible. It’s not forbidden.
We hereby appeal to our precious, beloved young folk who are not yet addicted to smoking, the bad habit whose end result can be very bitter: Please, dear brothers, do not do harm to yourselves and do not contaminate your surroundings by taking up this evil habit. Our holy Torah is a code of life which we must live by. Hashem wants us to guard our health so that we will be able to serve Him. Far be it from us to take this matter of health lightly, all the more so in an area which doctors are convinced is very damaging. Whoever can avoid smoking and prevent others from doing so, is obligated therein.
Whoever has already succumbed to this habit is obligated to try to the best of his ability to wean himself from it. He must surely refrain from smoking in a public place where others can inhale the smoke.
Yosef Sholom Eliashiv
Aharon Yehuda Leib Steinman
Moshe Shmuel Shapiro
Michel Yehuda Lefkowitz
S. Nissim Karelitz
Shmuel Auerbach
Via shemayisrael
Interesting enough, in 2012, the little I know claimed that these very same people declared smoking as an absolute issue. That’s disingenuous and misleading.