Then let's confine your answer to the state government. After all, that's the subject of the thread.
Any smoking-ban opponents who say, in effect, "any workers who don't want the risk (no matter how serious it really is) can go find another job" are simply shooting themselves in the foot. They're ignoring or even conceding defeat on the bigger issue, that being whether secondhand smoke really poses a serious health risk.
Because, if you give the 'nazis' a pass, and let them call it a serious health risk, if you're going to say concerned workers should just find another job, you'd better be ready to say the government (at all levels) should abandon all its efforts in the area of worker (and consumer) safety regulation.
Now, while that very well may be true -- hey, I'm a big proponent of 'caveat emptor' myself -- that's going to be a VERY difficult sell to the 90% of Americans to the left of me, the hardcore right-wing zealot. You'll be a lot better off focusing on disproving the alleged risks of secondhand smoke. If secondhand smoke does not rise to the level of a serious health risk, even the most casual conservative will agree government has no business regulating it in the workplace, and you'll have a much easier time convincing the mushy middle.
The EPA has already refused to set the minimum exposure limits on ETS. They already have permissable exposure limits on the elements of ETS and the limits are far above levels seen in the smokiest of bars. If the nico-nazis were to be successful in getting these limits lowered, then they would be banning everything from heavy manufacturing down to tap water.
But we all know that is their ultimate goal. The destruction of our economy and outright socialism.