What's the basis for this conclusion? I'm not sure we have near enough data to say even how many are watching it, let alone who is watching it.
We can put a pretty firm cap on its domestic audience: since CBS AA has only 2.5 million total subscribers, and its TV-MA rating rules out most family viewing, it is nearly
impossible that
Discovery could even theoretically have more than 2.5 million domestic viewers. (And, streaming services being what they are, it is unlikely in the extreme that
Discovery's viewership is actually anywhere close to that.)
Enterprise was cancelled in its fourth season for catastrophically low viewership on a network with such poor ratings it collapsed entirely the following year. After serious cuts to keep it commercially viable enough to limp into syndication,
Enterprise's per-season budget was by that point about $20 million (
Discovery's is $90-120 million). By year's end,
Star Trek had been condemned as a cultural irrelevance that only the hardest core fans still cared about, with
Enterprise taking much of the blame for sending
Star Trek into that good night.
Enterprise's average viewership that season was 2.9 million.
One can -- and should! -- point out that the economics of
Discovery are very different from the economics of
Enterprise.
Disco's life on a streaming service both guarantees that it will have lower audiences on average than it would on a network
and makes it possible for the show to survive and thrive despite a much smaller audience. And, of course, this thread shows that
Discovery can still develop a cultural cache via awards and things (congrats to the
Disco team on their nomination) even without anyone actually watching it.
But I think
@Serveaux's claim that "Outside of fandom not much of anyone watches it" is demonstrably true. In fact, I'd go further: not much of anyone watches it, full stop.
This is not a criticism of
Discovery's quality. I was a huge
Enterprise fan; I know that ratings and quality have little to do with one another.