Compared to what? Adderall and other stimulants are incredibly bad for your circulation and heart, but are frequently subscribed for adhd, because the benefits outweigh the risk and harm. Im not saying nicotine is harmless, but theres a reason people like it so much. It can be either stimulating or sedating depending on hoe you inhale, it can ease anxiety, promote digestion, its very effective as a focus aid. Many people who are drawn to cigarettes are possibly neurodivergent and using that nicotine to improve apme aspect of themself or treat some symptom. As I said, from what i understand is that a nicotine only habit is about as harmful as a caffeine habit, which is also widely understood to be an essential substance to help people get through the day. If you can offer any studies that show nicotine to be significantly more harmful tha this id like to see them.