Some do; some don't. But that's not the point: most "libertarians" seem to believe that the ostensible usefulness of the nanny state can be eliminated by peopl

Some do; some don't. But that's not the point: most "libertarians" seem to believe that the ostensible usefulness of the nanny state can be eliminated by people choosing to do good and engaging in market activity with others who do good. So profiting from something that's so evil is, to this way of thinking, counter-libertarian.