Commentary Vaccine mandates are being imperiled as intransigent workers ignore approaching deadlines. Labour unions are pushing back against vaccine mandates in some cases, while informal employee organizations are standing up for unvaccinated workers when unions won’t. Companies and governments are facing a choice between firing thousands of workers or backing off on their vaccination deadlines. Many are backing off. It’s easy for employers and governments to talk tough and draw lines in the sand with vaccine mandates. It is proving much more difficult to enforce these mandates in reality. Very few industries can suddenly dismiss five or ten percent of their workforce without serious disruptions to their operations. Canada is in the midst of a labour shortage already. Finding skilled replacement workers after having fired thousands will prove difficult for employers, if not impossible, and they are re-evaluating vaccine mandates in light of this. The most notable Canadian example is …