Yes. Like no joke or gag or exaggeration, empirically yes.
I must emphasize, absolutely this is the case.
There's a thing called the "ideological Turing test," (I think the term was developed by Peter Boghossian, but I may be wrong) where a person is asked to argue a position that they do not agree with, such that someone who does believe in it would think you're one of them. Liberals/progressives routinely fail this dramatically. They genuinely do not have the slightest idea what anyone who disagrees with them actually thinks.
One the early moments that had me leaving the left was in 2012-2014 the big push of what is sometimes called "accountability journalism." I first noticed it on NPR. Basically, journalists decided that their job wasn't to report the facts, but to get their readers to accept the Truth

. This meant you couldn't just let "both sides" talk, you had to let the "right" side speak, and then tell your audience what the other side's wrong opinions are (being sure to emphasize that they are wrong). You would see this reflected in Wikipedia's "Reliable Sources" and "False Balance" policies.
During COVID, this strategy was openly discussed when there was talk of a governmental "misinformation" department. They talked about implementing what was called, in propaganda studies, " inoculation" (rebranded as the only slightly less dystopian sounding "pre-bunking"). Like in an old-school attenuated live-virus vaccine, you purposely expose someone to an intentionally shitty version of an argument ("they want to build the wall because they hate brown people!"; "they think eating horse paste will protect them from COVID!"; "Trump doesn't support escalation in Ukraine because he's owned by Putin!"; etc) so that when the inoculated encounter something that sounds like the version they were exposed to, they'll respond to it as though it were the weakened version without actually interfacing with what they're hearing. " Oh, I've heard this before. This is about how you're racist." The important thing is that a distributed idea-suppression complex gives them these inoculations before they ever encounter a contrary opinion. That is the primary function of lefty social media influencers, from John Oliver to Vaush to PhilosophyTube (hell, a few years ago there were leaks from the UK government showing that Olly there was on the dole for being part of a program to design and distribute content custom-made for his particular audience to prebunk them against anti-[COVID-]vaxxers. All of BreadTube is a literal psyop with receipts).
As a result, most liberals/progressives have never actually heard an opposing viewpoint from a person who genuinely holds that viewpoint. They are the most propagandized creatures on Earth, and believe any deviance from their incredibly narrow set of allowable opinions is the product of something on a continuum between stupid and evil. They genuinely don't know how anyone else thinks.