"Conservative" has been the polite term for "Right-winger" for decades, maybe a century or more.

[JHB]

5. Well, I did note that first part, didn't I?

"Objectively, there are distinctions that could be made between "conservative" and "right-wing", but not in everyday language and current common usage." There has been such an effort to get as wide a range of people as possible to identify as "conservative" that the word itself has lost effective meaning.

As for my use of the word "radical," I'm not going to be honoring your request, as I am not wrong in using the word as I do. In the context of US politics, "radical" has a decades-long history of being a pejorative signifying extremism. Words can and often do have several meanings or shades of meanings, and I will continue to use the meanings that I think best convey my intent.