United States | News & Politics

• The US federal government has the authority to, at any time, outlaw state-sanctioned murder across the country ~~either~~ via Supreme Court ruling ~~or via constitutional amendment~~ and tell states to kick rocks. It chooses not to do this. ~~I don't care that an amendment is "hard";~~ if it's possible to do but it fails to do this, then it's the federal government's fault. The votes of ~~about 355 legislators and the signature of Joe Biden~~ 5 SCOTUS justices could end this today; it's the stroke of a pen, and they simply don't do it.
• This case went before the SCOTUS requesting an emergency block, where it was voted against 6–3. The SCOTUS had the power to trivially prevent this and decided not to.
• The majority of US states (27) as well as the federal government have state-sanctioned murder on the books as a legal criminal punishment. 12 states and the federal government have carried it out in the last 10 years.
• This is incidental to your overall point, but the current US population is ~337 million; "almost" 400 million is doing so much lifting there.

Edit: I accidentally became so sleep-deprived that I forgot a constitutional amendment has a separate proposal and ratification process. The SCOTUS method would 100% work, though, and it hasn't yet been banned at the federal level which is a simple majority of Congress and a presidential signature, so they do overall endorse it.