Stare decisis has only ever applied to things the justices approve of. It’s just that this may be the most fucked up group we’ve ever had. If all the former judges were also lovers of stare decisis, most of our civil rights would not be here, because many of those have been when previous judgements were overturned. Just think about the segregation of schools. Was Brown v The Board of Education not a reversal of Plessy v Ferguson?
The concept has always been about a bullshit homage that lawyers and judges dance around.