Loach commented on Trump's election at the 37th Critics' Circle Film Awards
His comments came at the 37th Critics' Circle Film Awards, where he picked up the best British film prize for I, Daniel Blake.
He said: “Deplorable as [Trump] is in every way, and the movement that got him there, it comes out of people being left to rot.
“It's happening across Europe and our country – the old industries go and nothing replaces it.
Deplorable as [Trump] is in every way, and the movement that got him there, it comes out of people being left to rot
“People are left as casual labour and in any decent society you would plan for that change.”
His film, which has received four Bafta nominations, tells the story of a man struggling to make ends meet through the UK benefits system.
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Blaming successive Labour and Tory governments who “cannot plan” for the issues with the welfare system, Loach described the current situation as a “critical moment”.
After looking into real life cases to put the film together, he said: “We had a feeling that we were on to something because the stories we were told were so horrendous and yet not part of our public discourse.
“We didn't expect to make the connection it did, which is very encouraging in one way, but equally it should make us angry and it's good that cinema can have that function.
“A film should grip you, but it isn't just escapism.”
Loach described the current situation as a “critical moment”
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The best photos from Donald Trump's historic inauguration
Mon, January 23, 2017
The inauguration of Donald Trump as the 45th President of the United States will mark the commencement of the four-year term of Donald Trump as President and Mike Pence as Vice President. A public ceremony will be held on Friday, January 20, 2017.
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President Donald Trump waves as he walks with first lady Melania Trump and son Barron during the inauguration parade.
His passionate view did not just carry through to the critics, but also to his own cast.
Dave Johns, whose leading role marked a sidestep from his usual career as a stand-up comedian, said taking part in the film had “politicised” him.
Loach's film tells the story of a man struggling to make ends meet through the UK benefits system
“What shocked me was how bureaucratic the system has become,” he said.
“It's there to help people and it seems to have lost that sight – it's all ticking boxes and saving money.”
He added: “For my first film to be able to work with Ken Loach was a dream.”