There's actually strong evidence that with each tax increase on cigarettes, consumption subsequently drops. The taxes in question are used for smoking cessation programs and other public health interests. Hardly parasitic, but also antithetical to a truly free society. On the other hand, society's shared costs don't occur in a vacuum. If my neighbor smokes, there's a statistical cost his neighbors will incur at some point in the future that involved supporting his healthcare. Given that the burdens are being shared in one way or another, I'm ok with not being "truly free".