As for George Washington, if you are attempting to make the argument that the government has a right to inoculate it’s military soldiers during war time against a disease, so be it, there is your precedent to argue upon. Furthermore, Washington has a habit of requiring many things, including the Militia Acts which required every able bodied male to own a military firearm. I don’t currently see an argument to enforce that idea. Pick and choose.
But using his small pox inoculation program from the 1700’s and a tiny military of rag tag farmer soldiers as a basis to go after an entire free and educated society of hundreds of millions in the 2000’s for an experimental vaccine, you are stretching this further than it could go.
The information is out there for people to make decisions now. They’ve made it, make a better argument.