I'm not so sure. I think the push is from the government actually. But companies are not exactly opposed to it. Quite the contrary. Big corporations see compliance as a moat. Tobacco companies supported stricter regulations on tobacco advertisements, because they had the deep pockets required to follow the changing laws. Mr. Altman is all-in on AI regulation, because it will mire down competitors while OpnAI has already "slipped past the wire" and done all their training pre-crackdown. When given a choice between regulating their industry (platforms and operating systems) vs regulating someone else's (porn sites and the like) they'll always helpfully "volunteer" to be the first to be regulated. It's just good business.

"The government" is the same as those lobbying the government. The people in the government get paid to push it, so they push it, and get paid more when it goes through, by the people who want that PII to analyze.