Allow the courts to order the incompetent to be euthanized.
This is what the Nazi’s did prior to WWII and once it was found out a lot of people spoke out against it. The only time ANY court should be allowed to order the death of anyone should be in a capital punishment trial.
If we killed incompetents in the US we’d have to get a lot of new Congress critters. Not to mention mayors, governors, etc...
The US did it also.
A lot.
It lost favor after WWII, but has been increasing more and more.