Totally disagree with the OP. Tuesday summed up perfectly why the atmosphere is quiet/poisonous at home games.
Despite utterly disgraceful performances in the two previous home games (Crewe & Rochdale), approx. 17,000 United fans decided to turn up regardless. The atmosphere was, if anything, nervous. I certainly didn't hear any booing before the first Southend goal - which was quickly followed by two more. Then there was abuse from some - a very few - fans behind the dugouts, which was directed at Wilder and was - given the tactics, display and general shittiness of the performances so far this season - understandable. This discontent didn't last long, in fact the subdued booing as the disastrous first half ended was remarkably tolerant given what had gone on before. The second half was played out in front of stunned disbelief, especially as this spineless team didn't even try to wrest the game back.
A caller on Radio Pig last night (he was definitely a Blade as he didn't feel the need to intersperse every other word with "Yeah?" as those denizens of Pitsmoor and Southey Green tend to) commented on the booing. I don't know where in the ground he was but, in the second half, Long was halfway into our half and looking to play another misplaced clearance forward. Some in the crowd sarcastically shouted "Shoot!" which may have been mistaken for boos (as in "Root!" in the cricket).
Some fans in the middle of the kop managed to get a "United" chant going which was amazing given that most people - including the team - had long given up on us.
The fans are the very last reason we are so bad.