But it implies that progressives believe that any change is good, not that just some subset of change is good. I might be progressive but I don't think putting diesel in my petrol car will improve anything.
No, it does not. To repeat myself, they believe the changes they propose are good. Conservatives want to undo the perceived damage done by progressives.
"change==good" can be read as "change is good" or "change equals good". It doesn't say anything about "change I propose == good"
Anyways, your definition is a bit silly - do you think conservatives, when they propose change(even if just to revert to an earlier system), don't think it's good?
Conservatives want to conserve the good order they believe they had. It is backward looking. They want things to be great again the way they were progressives ruined it.
The conservative proposal to roll back the progressive change? OF course conservatives view that as good. It goes without saying. Conservatives speak the language of "preservation" and "restoration"; e.g.,
