> Take the example of San Francisco; with nicer streets, even more people might want to move there. That would push up rents by an amount roughly equal to the value created — putting the gains from the higher quality of life into the pockets of landowners. ... The political economy problem now should be obvious: Why exactly would non-landowners press for improvements in their cities? The value of those improvements will be captured mainly by other parties.
This is equivalent to saying, why would anyone want a Starbucks to open in their neighborhood when the value of the Starbucks is captured mainly by Starbucks shareholders? (Assume, for the sake of example, you like Starbucks, otherwise replace with whatever you like.)
The answer, obviously, is that enough people find it to be a beneficial trade for both parties: people want to spend more money for better coffee. That's the invisible hand of the market that improves the sum of things.
Similarly, gentrification is about people wanting to pay higher rent to live in a nicer neighborhood. Yes the landlords get more money... but the tenant gets the nicer neighborhood! (Or closer access to more jobs, or whatever.) That's the whole point. That's free trade.
The author tries to claim that "residents just won’t care enough about the quality of life in their city." That couldn't be more wrong. On top of it, the author literally contradicts themself with the earlier line "with nicer streets, even more people might want to move there". You can't have it both ways, sheesh...