Employers, as a rule of thumb, will make hiring decisions based on the profitability (short- and long-term) of their decisions. If I decide I'm only going to hire people who have a life expectancy of 90 years (according to FDA recommendations, drug use, smoking habits, drinking habits, marital status, and dietary habits), then I'm drastically reducing my potential for profit. *Most* employers are smarter than that. Some are not. Those who are not, fail to stay in business. If you don't like the rules, start your own company and make your own rules. Until then, stop complaining about the rules.
Will you pass rules against it or will it just stay with cigarettes?
I'll stay with cigarettes as long as I want. If I decide I'm going to fire all my smokers, even the ones who make me money, then I make that decision at my own peril. Frankly, I'm all for keeping profitable employees, no matter what they choose to do in their free time.
I salute you for that!