Nah, the expression has merit in political science, it has only recently been profaned by the US reich wing, because they like to couch their bigotry in the language of science, sociology and intellectual rigor. Because by misusing and coopting those terns, they get to redefine them in the public eye and weaken arguments against their position that rely on those terms.

Your perception of the term “tyranny of the majority”, a term originally coined to point out the conservative overreach against and suppression of minorities, is a great example of how they colonize language.