The problem is that Correia, and similar authors, and followers (I know about the first because of passionate friends saying 'is so intelligent') shoe horn all opposition, everything they don't like, into this package deal enemy group called Liberals. It's pretty easy to see a monolithic group crowding out all choices when your definition for what it is, is horrendously unfair. And please don't trot out the over-tired 'Liberal Academia' line, that's much of the same thing. It's not anything as ego-inflating to say that reality has a liberal bias, it's that sense of " when you see most discourse as unfairly against you, you'll see enemies everywhere". I've had a lot of family trot out that line after I went to college about biased people 'infecting me', even when it was something as simple as when someone posted a video about tax reform, I did the math the person proposed, and pointed out it was hilariously off on the end results.
I don't think the Left is some magical always right sort of thing, in fact my calling out the low-effort style activism trend directs a lot of anger towards that group falling to this, but when a lot of people repeatedly box things into 'everything other than what I say is liberal', and carry around a big box of "these, concepts, no, these very WORDS, belong to the other side, and we can never support anything in them"... well, I guess when faced with that choice, I'll end up being part of their artificiality constructed, fake, monolithic, enemy 'group'.
Gotta keep feeling persecuted, after all. Think this is all crap? Think for a second. No matter what is proposed, it's hard to construct some plan of "I want to make a big change that helps people" and not have it fall under these people's "Liberal" box.
Sci-fi is extremely often written with that drive in its soul. The people that dream either bright dreams, or fearfully warn about nightmare situations, are looking at, either positively or negatively to what great lengths humans can go. We might laugh about stories from the past generations that were set in the "hyper advanced future year of 2015", but the date is often set quite nearby because the writers wanted to picture themselves as living to see that change. Or at least their children seeing it.
As people keep making this stronger and stronger line in the sand, stand offish situation with rest of the discourse of ideas, they're going to find themselves increasingly more isolated when it comes to sci-fi.