>“What had been manageable and a complete delight began to disintegrate,” Selvin continued. “It’s the mentality the utopian ideal attracts: instead of responsible members you’re looking at people wanting something for free. Utopias are undermined by human nature.”

Having twice-attempted communal living arrangements (once in SFbayarea): this quote is spot-on. Both my experiences, it was the awesome member's worthless partner [who sunk each dream].

My update to the above quote would be this: "Humanity is undermined by human nature."