@lrvick You might reach out to Richard Stallman, or at least look into his writings.

I see two ethical issues here. First, as you noted, this is a denial of medical care. I'm not that kind of doctor, so I don't know the ins and outs here, but I'm pretty sure there are some. You need to know how these affects your situation.

Second, as a condition of receiving medical care, you are required to install software that, because it is proprietary, you cannot audit.