Your argument against minority rule is to invoke... the courts? "Majority rule is great. Except when it does stuff I don't like, in which case I'll lean on minority rule by an infinitesimal number of unaccountable dudes in black robes to override it."

Constitutions are not enough. This isn't an academic question. Throughout the country's history, majorities have consistently trampled the rights of minorities. To me, majority rule looks an awful lot like rampant injustice. Minority rule looks like defense.