JFC. Ok seeing your other comments let's parse this out between normal terms and what I'll call etymological terms.

I'm using the normal usage of the terms. The modern conservative movement doesn't want gradual progress. They want to conserve the 1950s America, which at this point needs regression (see below for how you put that as reactionary). So normal terms you're wrong.

Or more normal terms, the conservatives (yes I'm using that term) of the Nixon era did some things like the EPA. In which case you saying conservatives want gradual progress is comically outdated.

Maybe you're trying what's best described as etymological use of the term. If you want to go to etymology, conservatives want to conserve. They don't want gradual progress. They want to conserve the King's power. Using these etymological terms yes you can say regressive means reactionary. But again using these etymological terms you can not say that conservatives want gradual progress, because conservatives want to conserve. You are wrong again.

Take your pick of the three scenarios, you are either wrong, comically outdated, or wrong. This is seriously not worth continuing.