Take the case of a social democracy that consists of just ten people: let's say four are black people, and the remaining six are white. This democracy decides to hold a plebiscite on the proposition that white people shouldn't have to work, as they have an entitlement to live off the efforts of black people, which they propose to do via the instigation of a special tax on the incomes of black people.Guess what? The proposition is won by six votes to four. A democratically made, majority decision has just taken away the liberty of black people, all in the name of the common good of the tyranny of the majority. Now, simply take away the emoting use of ‘black people’, and exchange that for ‘taxpayer’.
To me your question is a nice intellectual conceit for teenage undergraduates intoxicated at the first exposure to political philosophy and worrying themselves silly at the idea of the tyranny of the majority. So to me, If you have failed to advance from that first flush of giddy outrage to a deeper understanding of democracy that is your problem, and your loss, not mine.
It is the sort of absolutist question you often get from the intellectually immature - the rhetorical equivalent of a playground "nah nah nah so there." The great strength of democracy lies in its refusal to be weighed and measured, to provide a neat tick box solution for every problem, to excuse you from the bothersome and tiresome need for debate across numerous disciplines. Your question is nonsense, since it pre-supposes democracy is as rigid and nonsensical as your own philosophy. Democracy is a living, moving, warm blooded beast, when you yearn for a triumph of the taxidermist's art.
Just happened on a great quotation regarding the advantage a freedom stifling statism has in a democracy:
We must understand that there is an imbalance of power in the political system of any democracy in that the forces of statism have an innate advantage over the defenders of freedom. It takes but one legislative or administrative victory for statism to succeed in guiding society on an indelible path towards dependency. We cannot perpetuate the free-market, but we can perpetuate statism by creating inveterate dependency constituencies. Statism enjoys the inherent advantage of self-perpetuation through its own pernicious activities that engender a continued need for the government programs.