But you, in a fit of logic-impairment, have concluded that if an individual does NOT create a Living Will, then medical professionals (and the courts) should assume s/he wants them to act as if s/he did create a Living Will.
Don't quit your day job to go into any career requiring the use of logic at any level.
Since 80% of Americans now want to be allowed to die or to be helped to die if badly injured, that is now the norm. It is up to those who want extraordinary care to make their wishes known or accept standard non-treatment.
If you try to live in the past, you will become a part of it.
SO9