Everyone should be concerned when government swings far away from representing the people it governs. With this appointment, it is extremely likely that the supreme court will swing much farther right than the people it governs. It will make more and more decisions that do not represent what the electorate want because of this bias. Ultimately, the government should represent the people - and a minority group should generally not be able to enforce it's will on the majority. The basic unfairness of this type of scenario is always a problem.
If the situations were reversed, and the supreme court was significantly more left wing than the voting populace (while I may personally agree with the court more) I'd have similar concerns.
Are you uncomfortable with the precedents established by the Warren court between 1953-1969 due to this issue? I'm thinking Miranda, Griswold and Roe, specifically, and not arguing outcome but based on the paucity of textual support for the conclusions the Court reached.
Has it been clearly established that the population had a different set of values incompatible with these decisions from the Warren court??
I am not sure these things can be clearly established, I think they are in the eye of the beholder. I can say that the Warren court took a very expansive view of its role in Constitutional interpretation, in a way that wasn't really done in the past and rarely has been done since then. So while Miranda, for example, is generally popular today, the support (either in the text of the Constitution, or in established precedent) for the Court's reasoning was... weak, in my view. A lot of the talk of the recent decades has been about stare decisis, which is sort of an implicit admission that some of these decisions would be difficult to justify without the extra thumb on the scale of "let's not upset the apple cart now."
If I were you, I would be hesitant about unreserved support for all Warren court type decisions. What if a group of right wingers decide in the future that they don't care about textualism anymore, and they agree with the Warren court method, they just want to use it to establish right wing precedent? I imagine you would not like that very much.
A lot of the tale of the modern era has been the legislature being gridlocked and incompetent, and the executive and judiciary using that (often without opposition from the legislature) to expand their power relative to the legislature. The best solution would be for the legislature to not suck, which basically means the leaders of Congress need to hammer out some mutually disagreeable compromises. But I don't have much confidence in that happening right now.
My impression (and I may be wrong) is that the situation was similar to today. The majority of the people were quite liberal (look at the support for FDR's policies in 1930 and the civil rights movement in 1960's) and aligned to the Warren court!! Of course, the dixiecrats (who later became "southern strategy republicans") made outsized noise.
Warren Court had a lot of decisions, I wasn't specifically referring to racial civil rights cases. In any event, the Civil Rights Act of 1964 was a big win for everyone, and established a good framework that made the answers to a lot of those questions clear. But in any case, I don't know if it's accurate to say a majority of people were "quite liberal" then (or now for that matter). Typically, a majority of people are moderate. : )
In theory, if a court starts issuing decisions that infringes on someone's fundamental rights based on a value system incompatible with that of the populace - then I would be uncomfortable, whatever be the direction of that disconnect.
e.g.1 - Fundamental rights are not negotiable: A women's right of autonomy over her body is not negotiable - whatever the "populace" thinks.
If only we could all agree on what the fundamental rights are, and what the scope of those rights is. It would all be so easy.
e.g.2 - Conflicting rights should follow values of the polity: a gay couple's right to force an artist to work for them should depend on values of the people. No such exemption, however, should be present for corporations (i.e. no Hobby Lobby exemption). If a corporation can't serve people and employees without discrimination then it has no business being in business.
On this I can say I clearly disagree. First, Constitutional rights > statutory rights. Now, if a smart judge can thread the needle to come up with a method of dispute resolution so they don't conflict, all the better. But if they do, there's a clear hierarchy. Among Constitutional rights, conflicts should be adjudicated in accordance with the framework of the Constitution, in a reasonably consistent and predictable manner over time, as fairly interpreted by well trained jurists doing the best they possibly can be to be unbiased (while understanding that everyone of course brings their own lived experience and ideological framework to any issue).
If something is popular among the polity and there's no Constitutional or statutory basis for the popular decision, that's the legislature's job to fix, not the courts.