No it's the death of the corporate content hosting web - the open web was never about making money with your blog post/irc chat/usenet group/etc content, at least in my opinion.
Let data be free! If someone wants to use it to make money, well, it's open, just like open source. It's still not okay to take open source work and claim it as your own, which is what copyright should be limited to. Stealing a photo or plagiarizing an essay is intrinsically different than just having a copy read by something, be it human or an mechanical process such as training a LLM.