[woodruffw]

Sure. You can substitute “white nationalist” for “any kind of reactionary, including white nationalist” in my previous comment, if you find that more palatable.

[b800h]

" opposed to political or social change

* a reactionary government * reactionary politics"

That's about half of the people in most countries, so your argument just ends up as a sort of statement of your political beliefs.

There are more pejorative uses of the term; I guess we just end up in a semantic debate.