&gt;<i>As soon as people start believing in utopias there&#x27;s a danger that they will cross a line.</i><p>More people have been killed in pragmatic endeavours, like colonialism, and land grab&#x2F;turf wars, than from &quot;utopias&quot;.<p>This includes smaller scale utopias -- far less innocent people have been killed by ...hippies than by policemen.