The home supporters voiced their growing concern on Saturday after the Royals crashed to a 2-1 defeat to Aston Villa which leaves them above last-placed QPR on goals scored only.
It was the second slip against a relegation rival in a fortnight after Wigan also left Berkshire with all the points in a 3-0 romp.
McDermott himself came under fire yesterday when he was roundly booed midway through the second half after hauling off Noel Hunt and Hope Akpan for Nick Blackman and Garath McCleary.
The 51-year-old refused to criticise his detractors, however, when asked if he felt his own position was starting to be threatened by the growing disquiet.
"It's not about me it's about the club," he said.
"I thought the fans were fantastic at the start of the game. The fans want to see their team win.
"We've had a lot of good days in the past three years. The past three weeks have been difficult. The fans just want to see the team win."
- Sports & Recreation