One of my weirder and more rewarding hobbies is collecting definitions of "conservativism," and one of the jewels of that collection comes from Corey Robin's must-read book The Reactionary Mind:

https://en.wikipedia.org/wiki/The_Reactionary_Mind

Robin's definition of conservativism has enormous explanatory power and I'm always finding fresh ways in which it clarifies my understand of events in the world: a conservative is someone who believes that a minority of people were born to rule, and that everyone else was born to follow their rules, and that the world is in harmony when the born rulers are in charge.

This definition unifies the otherwise very odd grab-bag of ideologies that we identify with conservativism: a Christian Dominionist believes in the rule of Christians over others; a "men's rights advocate" thinks men should rule over women; a US imperialist thinks America should rule over the world; a white nationalist thinks white people should rule over racialized people; a libertarian believes in bosses dominating workers and a Hindu nationalist believes in Hindu domination over Muslims.

These people all disagree about who should be in charge, but they all agree that some people are ordained to rule, and that any "artificial" attempt to overturn the "natural" order throws society into chaos. This is the entire basis of the panic over DEI, and the brainless reflex to blame the Francis Scott Key bridge disaster on the possibility that someone had been unjustly promoted to ship's captain due to their membership in a disfavored racial group or gender.

This definition is also useful because it cleanly cleaves progressives from conservatives. If conservatives think there's a natural order in which the few dominate the many, progressivism is a belief in pluralism and inclusion, the idea that disparate perspectives and experiences all have something to contribute to society. Progressives see a world in which only a small number of people rise to public life, rarified professions, and cultural prominence and assume that this is terrible waste of the talents and contributions of people whose accidents of birth keep them from participating in the same way.