There are many people living in a modern society who have no, or extremely few, intimate personal contacts, who live in anonymity and isolation, and consequently in unhappiness. For although society has become abstract, the biological makeup of man has not changed much; men have social needs which they cannot satisfy in an abstract society.It is unfortunate that Popper has swallowed this propaganda. This sort of biological fatalism is a way of denying that people bear responsibility for their personality traits. There are no arguments that biology determines personality or needs. There never have been. No one has ever invented a quality explanation of how it could be the case. So why did Popper adopt the idea?
Calling these things "needs" is used for the purpose of advocating violence. If I want something, I am not justified to take it. If I need it, and declare that you do not need it, then I have a case to force you to give it to me (not a good case, but one that the new left will find convincing). If all people have a particular "need" then that is used as a justification that the Government provide it, in order that it be guaranteed to everyone. And if I don't want it, and don't want to pay for it, that's my tough luck (which is a euphemism for my turn to be forced to sacrifice what I wanted). And if I need something which my society does not provide for (including providing ways it can be attained) then I am doomed to unhappiness, so I will ask my society to change, and if it does not I am justified in starting a violent revoultion to change it. If two people need contradictory things, and cannot talk the other person into conceding, then there is nothing let for them to do but fight it out. Why has Popper used the language of the violent new left?