It is one thing to mandate a vaccine for healthcare workers but I really don't see any sense mandating it for every blue-collar working-class job out there. Vaccines weren't required for blue collar and minimum wage jobs before so I really don't see why it should be required now.
There are quite a few arguments against vaccine mandates.
1. The vaccines don't prevent people from getting covid, it just reduces the severity of covid in a person. Many first world nations are over 75% fully vaccinated but they having a high resurgence of covid cases and the covid cases among the vaccinated are much higher than the covid cases among the unvaccinated. According to this daily report from the Canadian Province of Ontario: https://www.google.com/amp/s/globalnews.ca/news/8492247/ontario-covid-cases-january-6-coronavirus/amp/
In the article, it says that a total of 13,339 were reported on January 6, 2022. 10,648 were in the fully vaccinated, 1,797 in the unvaccinated, 452 were partially vaccinated and 442 were unknown vaccination status. This article also reports the number of people in hospital with covid, 2,279 people are in the hospital with covid but even the amount of hospitalized covid cases the fully vaccinated are higher than the unvaccinated. 1,156 hospitalized patients are fully vaccinated, 123 are unvaccinated and 96 were partially vaccinated.
2. Vaccine mandates disproportionately affect people in ethnic minority communities, black and Indiginous people are vaccine hesitant because in the past, BIPOC were used as human guinea pigs in vaccine trials and died from the harmful side effects. Only 28% of Black Americans on NYC are vaccinated and Black Lives Matter New York slams the vaccine mandate as racist and disrespectful: https://www.google.com/amp/s/www.blackenterprise.com/leader-of-black-lives-matter-new-york-chapter-calls-vaccine-mandates-racist-and-disrespectful/amp/