Unfortunately the new victims in the system of LLMs and the way they distribute knowledge is the specialized content website.

Now an LLM just knows all the content you painstakingly gathered on your site. (It could also be, and is likely that it was also collected from other hard to find sites across the internet).

The original web killed off the value of a certain kind of knowledge (encyclopedias, etc.) and LLMs will do the same.

There are plenty of places to place the blame, but this is a function of any LLM, and a funcamental way LLMs work, not just a problem created and profited from by Google- for example the open-weight models, where no-one is actually profiting directly.