There is a great deal of evidence linking autism to certain immunizations.Actually that is an old wives tale, desparately clung to by anti-immunization folks.
But this thread is about Terri, so we should not digress.
This thread is about action taken by the state. That action may have unintended consequences including the state using its power to veto the healthcare decisions of parents. Liberals do not care about the unintended consequences of legislation. Conservatives do because we fear the power of the state.