“…im gonna have to side with those who say that a Yid’s body is different to a Goy’s…”
That’s completely wrong, no matter what you were told in yeshiva. The biology of your body has nothing to do with what your religion is.
As for the Chazon Ish, zt”l, there’s not a chance I would let him into my operating room, no matter what stories you were told.
Heilige yidden will continue to die from smoking as long as we continue to pasken from ‘someone who heard somebody else say in a Shaboos shmuzen that they read in a book that a certain talmid said a story about their rebbe…” Cancer cells could care less.