A quote from an article featuring that picture:

However, another man who prayed at the Mosque said the group [with the signs] were a dangerous minority. He said: "They are crazy. They all benefit from UK education and UK benefits.

"They get everything for free and yet they still complain. They are not Islam, they are for Osama.

"You see the people walking past and ignoring them. Most Muslims have better things to do then this."
They'll always be idiots (see birthers in the US). Though I don't see the reason in giving them welfare.

CR