"I’m a 6’2 grown man and it hit me hard – I had to take a minute away because I couldn’t watch children collect food on the streets," said the Chairman of the Homeless Charity.
John McDonnell said Williamson's interview was "possibly one of the worst by a government minister in recent years".
Some of Britain’s biggest food and drink chains, including McDonald’s and Nando’s, have reported stock outages in recent weeks.
"The suggestion that schools could realistically consider holding assemblies and lessons outdoors during the autumn term, as temperatures plummet, is a total fudge on the Government’s part."
"Class inequality in action,' wrote one Twitter user.
“We are disadvantaged people and this school gave us a way to move up," one pupil said.
A new paper says ministers' "refusal" to make a schools contingency plan in summer 2020 is "unforgivable".
'My god. Absolutely buried by 10:30am on a Sunday morning,' wrote one Twitter user.
Education Secretary Gavin Williamson said the £4 million Latin Excellence Programme would ensure the subject was not “for the privileged few”.