It is not like we can flee to the USA to avoid this. A 19 old that wants to (legally) immigrate will need the following vaccines:
3 doses: Hepatitis B, Polio
2 doses: Hepatitis A, MMR (Measles, Mumps, Rubella), Varicella (Chickenpox)
1 dose: Tdap (Tetanus, diphtheria, pertussis), Meningococcal ACWY (MenACWY), flue(Influenza).
We can only hope and pray that RFK Jr eventually revises this or that you can easily get a exemption.