I would argue that smoke is, by definition, a pollution of the environment, even for smokers. So I should have omitted the 'else' and just left it at 'everyone'

I would argue that smoke is, by definition, a pollution of the environment, even for smokers. So I should have omitted the 'else' and just left it at 'everyone'. If people knowingly volunteer to expose themselves to it then it should be their right but they do not have the right to impose it on anyone else.