The real issue is that historically we've had abysmal GMs--the last two cataclysmically bad--who have earned the fan and media's scorn. The myriad busts, awful signings or players we've passed up, players we've allowed to leave, etc. are all why these dopes get blasted.
The last two were awful. Idzik obviously worse than Maccagnan, but both bad. Tanny wasn't bad.
As for the busts and for the players passed up, EVERY team has done this many, many times. The entire league passed on Brady until the 6th round. And there are plenty of busts in the first round for every team.
But Jets failures get highlighted by both Jets fans and the media. Why?
1. Jets fans, like all fans, focus on the world through our lens. So we see our busts, and assume every other team doesn't have them.
2. The national media rips on the Jets because of the "New York" in their name. The local media rips on the Jets because they are not the city's establishment team like the Giants are.
Yes, the Jets have had plenty of failings. But other teams have, too. Yet we continue to act like this is only a Jets thing.