Healthcare workers would rather quit than get vaccinated, why? - Trailer

The Biden administration has rolled out a vaccine passport policy for international travelers coming into the United States. The same policy might be implemented for domestic flights. This means that unvaccinated Americans who already risk losing their jobs, will be at risk of losing their freedom to travel. But people who’ve decided to not get vaccinated still won't get vaccinated, even with all their rights being taken away. What is the reason that they are so adamantly opposed to vaccines? Is there a scientific basis for the government's vaccine mandates?