There's an argument that, in part, it is.
Have a read of my sig.
I agree with this, the crowd are getting on the players backs way too early and as a result putting a lot of pressure on the players (although of course your sig is not on this quote).
People may have the right to want some form of entertainment if they pay £25/£30 but if those people then become part of the problem by there actions, will the end justify the means
IMO they play for our club and in the end we support the club and as a result should support the players and manager that are doing the job.
I have seen at close hand what happens when the fans try and run the club through constant whinging because things are not as they demand living up here in Newcastle and as you all know it didn't end well.
Oh as well this is just my little opinion so I dont want any shit about telling people how to support there team