I used Compuserve only a few times, on someone else's computer. So I'm not terribly familiar with it. However, it looks like they provided a Web interface to them until they shut down the forums at the end of October 2017.
Archive.org has snapshots of that Web interface.
https://web.archive.org/web/20170920031241/http://member.compuserve.com/forum_center/
They do appear to be readable from that point. You'll need to wait for a few reloads after clicking on a forum, as there are some HTTP 302 redirects, but it eventually comes up.
I don't know how long Compuserve retains messages on a forum
if you saw this in, say, the 1990s, and they expired prior to the Web interface and archive.org archiving them, they may not be on archive.org.
But if you can remember where they were, that might get you there. Good luck!
On one hand, I agree that "fascist" is broadly overused to talk about things on the right, extending beyond what it should technically refer to to. And that's not something specific to 2025 or the US -- it's been a phenomenon for decades.
On the other hand, that's a two-edged sword. It's also true that "socialist" and "communist" are very broadly overused by the right to try to paint things that they didn't like as being more extreme than they were. During the Cold War, this was maybe more understandable, but it's not at all uncommon for people on the right to call center-left people "socialist" or "communist" even today.
Here's Stephen Miller himself pulling out "communist":
https://www.thedailybeast.com/stephen-miller-demands-americans-side-with-donald-trump-against-communist-judges-in-unhinged-rant/
Obama and Harris also both tended to get painted as socialist or communist at every opportunity possible. Neither is anything of the sort.