Abortion used to just be a Catholic thing, but after the Civil Rights Act was passed political opportunists sought a new issue to drive southern evangelicals and abortion was it (and later gay people, but abortion was first).
Now however, the con has been bought by those in power and joined with the more toxic forms of longtermism which posits that humans must reproduce at all costs. And here we are today.
Vaccines are unprofitable for pharmaceutical companies. If he defunds the research and production of vaccines they will vanish even if they are not banned. There are just so many ways this idiot can and will kill us all.