Vaccines should not be mandatory because even those that are deemed “safe” can do harm.
For instance, vaccines contain harmful ingredients. Aluminum is used in some vaccines, and excess aluminum in human bodies can cause neurological harm.
Glutaraldehyde, a compound used to disinfect medical and dental equipment, is used in some DTaP vaccinations and exposure can cause asthma and other respiratory issues.
Some flu vaccines contain cetyltrimethylammonium bromide (CTMB), a compound used as an antiseptic, which can be a skin, eye, and respiratory irritant.
The list goes on and on.
Vaccines can be deemed safe for distribution and use even when they are made up of ingredients that can do minor to severe damage to damage to an individual's health.