So I don't have a problem with publishing rubbish as long as you pay for it yourself.
What I do have a problem with is that these people try to collect anything that they can get their fingers on, put an ISBN on it, and then sell it to libraries at horrendous prices.
This is not about making knowledge accessible, this is solely about scraping a bit off library budgets with the least amount of effort.
(Edit: language)
I've served as a reviewer for textbook chapters before. Maybe I'm the exception, but I took that responsibility seriously (and sent at least one back with a "don't even think of publishing this without a complete rewrite" response).
If a book really is written and then forgotten by the world, it was never a serious part of the discussion. And a discussion, however small, is what academia is.
Which publishers? If this is a real problem, there might be real solutions but those won't be found if we are busy debating narratives without digging down into the details.
Peer review is, like Santa, a story we tell to motivate little children; academics (particularly in the humanities) are their own QC departments.
And many scientific publishers will happily publish books on any obscure topic, if you pay for printing.
I feel like I have to say "I do not understand the relevance of this fact to the claim that the academic press is a staunch bulwark against incorrect facts receiving its imprimatur."