That's exactly the end run here.

Taxes depend on laws (however imperfect and full of loopholes) that are equally applied across all corporations.

Government equity/profit stakes are exactly the opposite: negotiated per corporation and cede power to the corporation.

If Altman was honest about his question framing, the simplest answer would be "Tax AI companies more heavily and use the proceeds to fund universal social benefits / payments."

In contrast, a one-off 5% equity stake is a bribe and nothing else.