This is ONLY about getting rid of useless expensive people.
I can tell you that I, my wife and virtually all of our family members on both sides would prefer an easy death over living a fruitless existence in a drug induced coma.
Since the flood gates have been opened in the US, that will become common here in a few years. Remember, at the time of RvW, no one expected abortion to be as commonplace as it is now.
Last year the Supreme Court ruled 6-3 in Gonzales et al v. Raich et al that the federal government, by authority of the Commerce Clause, still could prosecute people for growing and using marijuana under the Controlled Substances Act despite California's medical marijuana laws. The 3 dissenters were Rehnquist, O'Connor, and Thomas.
The 6-3 decision of Gonzales v. Oregon also concerns a conflict beween the local, voter-approved laws and the Controlled Substances Act, but this time the SC majority say that the federal government allows doctors to prescribe and procure the lethal drugs.
It's strange that the SC majority decided the Commerce Clause applied in the Raich/California case, where there was no economic activity because the patients were growing their own marijuana with no selling or trading, while the SC decided the Commerce Clause did not apply in the Oregon case, where it's possible to define some economic activity (paying a doctor for his services, paying for drugs).