If by “regulate” you mean “forcibly dissolve them and charge their CEOs with crimes against humanity and nature”, then I agree

How about: regulate the 10 largest companies and we can save the Earth?

Good plan. Don’t see that happen. Yesterday I briefly imagined that a small group of billionaires left the burning planet Earth in their spaceship. And angry politicians were surprisingly not allowed in that ship. And the masses were sad for the politicians while the melting earth was transforming into dust and ashes.