At this point in the essay, Andreessen is wondering aloud why more building hasn't happened in the United States to solve problems in fields like education, manufacturing, and transportation.
He asks what the reasons could be, and lists several rejecting each of them. One reason that he rejects for why more building hasn't happened is capitalism.
Andreessen thinks capitalism can't be the reason for us not building because the fields he mentions are places where it's profitable ("highly lucrative") for businesses to operate. Replacing capitalism with another system (say communism) wouldn't solve our inability to build, in Andreessen's view.
He asks what the reasons could be, and lists several rejecting each of them. One reason that he rejects for why more building hasn't happened is capitalism.
Andreessen thinks capitalism can't be the reason for us not building because the fields he mentions are places where it's profitable ("highly lucrative") for businesses to operate. Replacing capitalism with another system (say communism) wouldn't solve our inability to build, in Andreessen's view.