You are living in the wrong century if you really believe this justifies the attack of this woman.
Regardless of whether you approve of smoking or not, there is absolutely no justification for what happened here. Do not use your dislike of an adult's choices to justify your own prejudices, if that is what you are expressing here.
If you think smoking is good for a child in the womb, what century are you living in????
I am not expressing that, as a libertarian, we believe that no one has the right to initiate violence against another.
What I said was that those who are against women smoking, have lots of other similar laws in place that were designed to protect women, like protecting women from the draft, from being sent into combat, giving married women dowry rights, and most recently giving dowry rights to the wife in the husbands 401 k program which was designed specifically to protect women.
There are clear and proven dangers in smoking, particularly to wommen, and to women bearing children. The same dangers are not relevent to men.
There are many laws designed to protect just women, or women and children. On the other hand, I know of no law that was ever designed to protect "just men".
That would be stupid for any woman to support a law that would only protect men, and we woman would never do such a thing, so you will never see a law designed to protect only men.