Jeff Bezos in FY 2024 filed for, and received, a $2k child tax credit.

While the company he was the founder of passed over a trillion dollars in market cap.

If it's a good tax credit, incentivising something society wants to incentivise, then everyone it applies to should get it; that helps social cohesion. If you make billionaires ineligible for tax credits they'll oppose them (and why shouldn't they?)