That line would be drawn through elections, legislation, and court decisions. Decisions like the one OP was referring to [0] where the Supreme Court found that

That line would be drawn through elections, legislation, and court decisions. Decisions like the one OP was referring to [0] where the Supreme Court found that compulsory vaccination is within the state's power, and further that "[r]eal liberty for all could not exist under the operation of a principle which recognizes the right of each individual person to use his own [liberty], whether in respect of his person or his property, regardless of the injury that may be done to others." 0. https://en.wikipedia.org/wiki/Jacobson_v._Massachusetts https://en.wikipedia.org/wiki/Jacobson_v._Massachusetts