Not that I support this ruling in any way or form, but the 2016 election led to the current slate of justices who came up with this ruling. It is probably good and by design that we don’t change justices with the popular vote.
We’re only talking about the popular vote insofar as Democrats try to delegitimize Republican administrations by insisting that they are a minority party that can gain power only through the quirk of our voting system. But in doing so they conveniently ignore the House popular vote, which Republicans routinely win.
You shouldn’t drink your own Kool-Aid. This Nixonian “Silent Majority” thinking is bad for Democrats, insofar as it causes them to get over their skis. In 2010, Democrats lost the House popular vote by almost 6 million votes. They lost it by 5 million in 2014 and 1.5 million in 2016. The House popular vote is a far better proxy for where the parties stand with the electorate.
For example, look at the Federal Reserve. They are supposed to be independent from politics, but their head is appointed by the president every X years, and so they naturally make the decisions that guarantee them reelection and not the decisions which would maximize economic stability/utility.
Trump was elected in 2016.