> Even if the majority wants to suppress minority dissent (or do worse things to minorities), it's not the right thing to do.
Let me follow your definition, say, in the case of Ancient Rome. There is a minority of masters and a majority of slaves. Minority of masters has a dissent (from the slave's point of view, of course) that slaves should stay slaves. So, according to you, it is wrong for them to fight for their freedom, right?
This statement makes sense for some specific ethic systems.
For instance, in almost all modern states there are ideas, which are shared by some majorities and considered unethical in Christian ethic system.
But bad_user seems to imply ethic system which is based on the aggregate citizens vision. With such ethic system opinions of majorities are ethical by tautology.
Let me follow your definition, say, in the case of Ancient Rome. There is a minority of masters and a majority of slaves. Minority of masters has a dissent (from the slave's point of view, of course) that slaves should stay slaves. So, according to you, it is wrong for them to fight for their freedom, right?