If you’ve had the vaccine, then my not getting it is not endangering you cause you are immune.
Unless you aren’t really sure it works after all.
Vaccines aren’t 100%. Neither is getting a disease. The human immune system is not perfect and sometimes diseases change enough to make previous immunity less effective or completely useless.
My concern would not be for myself, but rather for everyone who can’t get a vaccination because of a specific allergy (allergies to eggs are a common problem for certain vaccines like the flu shot) or because they’re immunocompromised. We’re talking here about millions of Americans who have cancer, or who have HIV/AIDS, or who have autoimmune disorders that require immunosuppressants to keep them alive, or who are simply too young for vaccines (vaccines are spread out with children over the course of years). You also have people at the hospital who may have been vaccinated against a particular disease, but whose immune systems are so weak because of whatever has them in the hospital that it wouldn’t matter. Someone who chose not to get vaccinated comes in with a preventable disease, it spreads to the person who’s clinging to life, their immune system is ineffective, and they die.
I am NOT in favor of force vaccination. But I also think it’s selfish and irresponsible to refuse to get vaccinated, understanding that any person of good moral character who studies the issue will want to avoid vaccines that utilize stem cells derived from abortion. Thankfully, vaccines exist from ethical sources for everything except Hepatitis A in the US. For anyone who has questions about which ones to avoid, the Vatican has a list of the bad ones.