They should be fighting ALL government mandated bans, and if they hate smokers so much, go non-smoking.
they might hate smokers but they know who their clientelle is, and they know better than to alienate a large portion of them.
and they wouldn't fight a state ban, but most wouldn't endorse it either. and if a statewide ban went into effect, they'd probably all find a way around it. (patios, decks, sidewalk tables, etc)