There are plenty of people that really do believe that what so the majority would have, is what so should be done. However, in a Constitutional republic, the very purpose of that structure of that Constitution, is to make that government, of, by, and for the people subservient to the highest law of the land, which is its Constitution; and of which that Constitution makes it clear that each citizen of these United States is thereby entitled to avail themselves of the full and complete rights of that Constitution, and in particular, the Amendments to it. This signifies that this then is not a government of simplistic majority rule, and certainly this is never to be a government of mob rule, but rather our government is structured as a government by Constitutional rule, of which, therefore it so follows, that even those in the most extreme minority positions, that is, of even just one, are protected by that Constitution from the ill effects of a majority rule run amok, or even worse, mob rule.
The very purpose of good governance is for the people to gather together into one body politic, so as to create a union of people that expressly have joined together as one, in order to protect, defend, and to propagate a form of government, so created to be of benefit for those people. This thus signifies that when it comes to justice, that good governance requires that it thereby comes to the aid of those that are suffering from the ill effects of their Constitutional rights being unfairly wrested away from them, for whatever reasons that such has occurred, and that those that have had their Constitutional rights trampled upon, or upended, are entitled to have their fair day in court so as to rectify such through appropriate adjudication, thereof.
So then, it is quite clear that while there are times when the majority does properly rule, as in the election ballots of all types, and the votes so subsequently tabulated, of which each one of those votes is equally weighed; this does not signify that the majority is therefore the ultimate ruler of this nation. Rather, the point of a written Constitution, and Constitutional law, is to preclude the majority from deciding on their own initiative, as to what that majority will or will not permit per their whim. Instead, we have a justice system so created so as to interpret the laws that have been passed, and further, to adjudicate as to whether a particular law as written and interpreted is or is not constitutional.
In point of fact, as much as some people may find this disconcerting, the principle behind Constitutional law is never about doing all that can be done to assure that the majority gets its way, every single time; but rather it is to see that justice is accomplished in a manner, in which, whether popular or unpopular, that the justice so being rendered is consistent with the principles of that Constitution, and that further that this justice is fair, universal, and equally applied.