"Value" is quite subjective, no? I don't think it makes sense to completely write off demand for something because you don't understand the appeal. Don't kid yourself, there was (and still is) a considerable user base hungry for the service Parler provided. Something else will inevitably meet that demand.
There's demand for spare organs for cash; there's demand for murder-for-hire; there's demand for child pornography. Just because there is demand for something doesn't mean it should be fulfilled.
Just because we've hit a point where enough people in the country want a platform to share their Nancy Pelosi torture fetish erotica doesn't mean there needs to be a platform to do so. I don't see why anyone should care about who is "hungry" for that.