Do you want to live a shorter life where you do what you like or a longer life and deprive yourself of everything?
Just like anything, the poison is in the quantity. I like having a cookie every now and then, but if I had 20-40 per day, this would be just as deadly as smoking that many cigarettes.
1 or 2-3 cookies per day with an otherwise healthy lifestyle and diet probably wouldn't be that detrimental. Hell, it might even be good for mental health because you don't feel like you are denying yourself all of life's simple pleasures. Same thing with tobacco.
There is even a doctor who wrote about the health benefits of tobacco
in moderation. (less than 5 cigarettes per day or choose cigars and pipes over cigarettes since you're not inhaling paper and added chemicals)
https://www.goodreads.com/book/show/1430684.The_Health_Benefits_Of_TobaccoMost notorious cigar smokers usually do alright with regards to health and longevity - Winston Churchill, Michael Jordan, Arnold Schwarzenegger, Fidel Castro, the list goes on. Michael Jordan was said to have a cigar before every home game lol.