If you visit an elderly care home you'll find plenty of people who express their wish that they don't want to live any longer.
It's not getting better for them - they are just waiting for the day to come, often in agony.
And don't you think the solution to that should be to not ship your parents to a care home rather than finishing the job by euthanizing them?
Stop conflating “I don't want to live” with “I don't want my parents to live”.