The absolute worst part is that all of the above are actually extremely valuable and useful tools, that now have unnecessary hysteria and stigma around them.
How do you see cigarettes as a valuable tool? As an ex smoker, I agree smoking is enjoyable, but it's so addictive and objectively unhealthy I don't really see a place for it (of course I do support people's right to make their own choices, but I'd never call it valuable)
I'd be very suspicious of a claim that even if some compound(s) in tobacco smoke help with ulcerative colitis or any condition, that the clinical recommendation is to take up smoking cigarettes. But I'm open to being proven wrong