The Royal College of Physicians strongly disagrees with you. This is the same group that sounded the alarm on cigarettes in 1962 with their groundbreaking report "Smoking and health" [1]. Their 2016 report, "Nicotine without smoke: Tobacco harm reduction" [2] stands in staunch disagreement with your statement.

[1] https://www.rcplondon.ac.uk/projects/outputs/smoking-and-hea...

[2] https://www.rcplondon.ac.uk/projects/outputs/nicotine-withou...