Vaccination requirements were also litigated at USSC, over a century ago: https://www.politico.com/news/magazine/2021/09/08/vaccine-ma...

I am an independent software developer and like most business owners I contribute because it's required by law and failure to do so carries harsh penalties.

Are you telling me that you do not pay federal and or state income taxes? That you do not contribute to FICA? Are you under the impression that because you are not a federal employee that you are not required to pay federal income taxes?

If so, the IRS has plenty to say about it: https://www.irs.gov/privacy-disclosure/the-truth-about-frivo...