So do you target AI training explicitly?

No. Same rules as everyone else.

How can that he even enforced?

Disclosure of training sources

Is my review sentiment evaluation machine illegal now?

If your sources are copyrighted, yes.

What if I RAG copyrighted content in am I in jail now?

Unlikely. None payment of restitution in a civil case could end in jail via contempt of court.

How could this possible be ever enforced?

The same way other copyright claims are enforced.

This issue is dominated by tech illiterate

Literacy in technology has no effect on the law.

fall for copyright propaganda.

We’re had many years of publishing strengthening their legal position. It’s case law, not propaganda.