Ari Berman, a writer for Mother Jones who's promoting his new book, Minority Rule, is speaking on the radio right now. He notes that, per demographic projections for the United States, 30% of our population will be electing 70% of our Senators by 2050. Which in turn means they'll have outsized representation in elections for President (because the number of Electors each state is granted in the Electoral College is equal to their number of Senators + Representatives), which in turn means they'll have outsized representation in the selection of Justices to the Supreme Court (because the President nominates them and the Senate confirms them).
He notes that when the compromise was reached between the representatives of the large states and the small states on how our representative government would be apportioned, the largest state - Virginia - had 14 times the population of the smallest state - Delaware. Today, California has 67 times the population of Wyoming. And it isn't just the Senate. People in small states today get more Representatives in the US House, too. California only has 52 US Representatives, when it should have 67.
And this is all if the minority party doesn't pull any tricks or manipulate things to unbalance their control of the government even more.
EDIT: And, on the subject of shenanigans, Berman notes that the 2024 general election will be the first one seeing a lot of changes to elections that states have implemented since the section 5 protections in the Voting Rights Act of 1965 were gutted by the Shelby County decision in 2013. (I suppose there must have been some present in 2016 & 2020, but Berman says there are more that have been implemented since then. For instance, he says there's a new law in South Carolina that would allow the state legislature to more easily overturn the results of their population vote. He believes this new law wouldn't have passed Section 5 muster before Shelby County. I don't know the details.)