Politicians are responsible for inequality in Britain. No wonder they blame refugees | Owen Jones

The shameful scenes at Manston will be repeated as long as asylum seekers are scapegoated by ministers avoiding scrutiny

Actions have consequences. Britain's political elite has for a long time decided to pander to - or deliberately stoke - bigotry against migrants and refugees. This is a joint enterprise with rightwing media outlets that have sought to portray some of the world's most vulnerable people as a marauding mob, undeserving drains on resources and incompatible with British culture. It has reaped rich political dividends: justified public anger at a lack of affordable housing and secure work, declining living standards and austerity has been redirected, crudely, at the caricatured foreigner. To achieve this aim, it has been necessary to strip migrants and refugees of their humanity: after all, most human beings do not tolerate harm being committed against those we see as people like us".

This brings us to the Manston migrant processing centre, in Kent, and the petrol bombs that were lobbed on Sunday at a Dover Border Force immigration centre. Most people would find the conditions at Manston intolerable if it were housing cats and dogs, let alone people. Around 4,000 people seeking asylum - way more than double the official maximum capacity - sleep on blankets on floors. It is supposed to be a short-term holding facility, where checks are conducted before the people there are moved on to detention centres or accommodation. But these human beings are being effectively imprisoned for up to four weeks. In these bleak overcrowded conditions, there has been an outbreak of diphtheria, while scabies is said to run rampant.

Owen Jones is a Guardian columnist