Commentary It’s impossible to choose the foulest aspect of Quebec Premier Francois Legault’s appalling, cynical vow that he will use the provincial tax system as punishment for those unvaccinated against COVID-19. Everything about it is bad. But is the nastiest part the crude injustice? Or is it the doomed-to-failure incoherence that really scrapes the bottom of the barrel? Take your pick. Bereft of even the scantest details about how his assault on both public health care and individual dignity will even work, Legault used the announcement as a brazen political deflection ploy to distract from the resignation of his top public health official, Dr. Horacio Arruda. Leaving the focus on Dr. Arruda, after all, would inevitably lead to questions about why on earth he was left in place to lead the anti-COVID campaign for two years when it was agonizingly obvious a few months into the pandemic that he was …