current GPL licenses doesn’t protect them from A.I. scrapping their work

The legal status of AI scraping is not dependent on a specific license.

It's dependent on whether copyright law requires permission from a copyright holder to train AI on their work. This is, as far as I know, not (mostly) a legally settled question yet.

All a license can do is permit things that would otherwise not be permitted. If copyright law doesn't require that kind of permission, then it doesn't matter what the author wrote in the license, they won't be able to successfully sue for copyright infringement.

Meanwhile, if copyright law does require permission from copyright holders for training AI on their works, then the GPL already does what you want to achieve, because then anything generated from such an AI is already a derivative work.