Well, I'm married now, so none of this applies.
But if I were still dating, I would share a lot of the dealbreakers that you guys listed above.
Lack of respect, irresponsibility, stunted emotional maturity, indulgence in anger, cheating or intentional flirting, unwillingness to go to counseling, crawling into a cave instead of communicating about issues, lacking discipline, being generally stupid, having seen a prostitute in the past, having a habit of getting drunk and making poor decisions, watching too much TV, being a gamer (of any kind), not wanting to travel, being on drugs of any kind, not being open to new people and ideas (especially immigrants and foreigners), argumentative personality, narcissism, being a workaholic, lacking self-control, being insecure and projecting that on me....... oh, I could go on and on.
But yes, SMOKING IS NASTY. No way in hell would I even kiss a smoker, let alone date one. I really cannot imagine a more repulsive, disgusting turn-off. Not just the smell and polluting nature of it, but how smoking communicates that person's total lack of willpower to face down an addiction and make good judgments about his health. That's a massive character flaw that I could never overlook.