Are you sure? Has this been tested in court? As you write: "rightly so", may I ask if you are a judge, lawyer? Has this decision of yours been appealed, gone to a higher court? Does the word "training" as applied to a computing system not simply mean "copying"? Who decides this?

Copyright is still about outputs instead of inputs, just like it is with human learners.

Training isn’t copying. Its an input. It’s akin to “seeing” or “reading”.

Any judge needs to think in terms of outputs. If a system outputs something that violates copyright, there’s a problem.

But attempting to regulate inputs can’t work. For instance, it will be impractical/impossible when we have agents moving around in the real or virtual world, how are they supposed to know when they should turn their sensors off so they don’t see copyrighted material.