Reminds me of the old advertising trope about: "It's the dogs, sir. They just won't eat the food." People naturally gravitate toward things that actually work. The Model T Ford didn't require one bit of government funding in order to sell. Air conditioning, refrigerators, indoor plumbing, cell phones, all sold themselves without a single government imposed program or "mandate". Because they were each a good idea, in and of themselves, and they worked. Overcoming vaccine hesitancy would actually be pretty easy. Just make a product that reliably and consistently does what you say it will do. Make vaccines that actually prevent disease. Make treatments that actually cure diseases. You won't need a government mandate, or liability protections and taxpayer dollars to get rich. People will be throwing their own money at you. If you have to spend millions of dollars figuring out how to manipulate people into using your product, maybe you should just stop.