For the love of God and all you hold dear do not tell the FT's David Keohane*

 From New Haven via the New York Times:

A Yale economics professor has some ideas for how to deal with the burdens of Japan’s rapidly aging society. The “only solution,” he said, is mass suicide of the elderly, including ritual disembowelment. https://t.co/krlL3Ytd2e

— The New York Times (@nytimes) February 12, 2023

*From am October 2015 post "The Coming Battle Between The Boomers and the Millennials (yeah, I got your "kill the old" right here)":

FT Alphaville's David Keohane may be a gerocidal maniac.

At first I thought his "Kill the old" mantra was a simple eccentricity, sort of like the "Eat the rich" signs I used to see stenciled on the sidewalk outside the tower, but I just did a search of the Financial Times website and it returned 43 hits for "Kill the old". All on the flagship blog.

So I tried to comfort myself with the thought that at least I'll go out with a neologism to my credit, insomuch as a quick Google search for "gerocidal" turns up only nine hits and those appear to be misspellings of genocidal.

But then I Googled the root noun, gerocide, and there are scores of uses, properly spelled.
Now I just feel like taking out a couple millennials as I go down....

Reused in 2021's ""Do Older People Have a Duty to Die?"" 

See also "Demographics Rule: The Coming Battles Between The Juvies and The Geezers" for an example:

From FT Alphaville:

Kill the old, Piketty and demographics edition

...From MS again, with our emphasis, with more on why the change in demographics might produce inflation, reduce inequality and increase wages

....MUCH MORE 

Huh. Two years before the BIS paper. That's a pretty good catch.

note salmon bisque (not pink) color for ready identification.