It was more Eugenics oriented vs poor people, etc.
A clarification on her (wrong) and pro-death thinking was a 2009 fdrlst article by 'Moll' Hemingway:
https://thefederalist.com/2014/09/24/ruth-bader-ginsburg-really-wants-poor-people-to-stop-having-babies/
summary: poor people, non-contributors, population control