It actually makes me appreciate Reddit a bit more -- it can be garbage, but it's also a bit of a centralized meeting place for so many smaller communities. Even if the bulk of those smaller communities doesn't take place on Reddit itself, they still flow through Reddit.
Reddit is like the central bazaar of discoverability. The community you end up in might not live on Reddit, but in all likelihood, you discovered it through Reddit.
So despite how terrible the big communities can be (which is not a Reddit-exclusive problem), I'm still glad it exists. Maybe an alternative is needed, but at the very least, I respect how Reddit has mostly retained this unique ability over the years.