Btw, the guest flounders when the host brings up the Tragedy of the Commons ("Companies will pollute", "But muh community!"), as it usually happens with the mainstream Chicago libertarian people.
Thankfully, there was a libertarian during the turn of the century who completely solved this question, from within libertarianism and based on strictly libertarian principles: Henry George.
George has the honor to have been very harshly criticized both by Marx and by Rothbard. And if you want to read something fascinatingly unsettling, read Rothbard's critique of George. Because it is unexpectedly dishonest and shoddy - which has historically been a large stain on Rothbard's reputation. There have been many subsequent georgist critiques of the critique, if you're ever interested in the debate.