1) its not illegal (it is)
2) it shouldn't be illegal because Anthropic stole training data (thats not how the law works)
I am a practical man. From what I see laws are mostly for common folks and often do not even serve real justice. The higher one goes and the amount of money / power involved the more the laws bend and on international level the only law that matters is the size of one's club and willingness to use it. And when the country with supposedly biggest one starts crying I find it laughable.