Why do Dallas haters act as though the cowboys are the worst team in the league?

Seriously, I always see Cowboy haters saying dallas sucks, dallas is overrated, or my personal favorite "they haven't done anything since the 90's". Lol. What's that suppose to mean? Some people act like their team is flawless, while the cowboys are just some crappy franchise. If Dallas hasn't done anything since the 90's then neither has 25 other teams in the NFL. In the past 10 years we've only had 7 different Superbowl champs. I'm pretty sure that every single person that hates the cowboys isn't a fan of one of those teams. Yet the haters still act like dallas is the only team that "can't win when it counts". Tell that to the eagles who've been to the NFC championship what like 5 or 6 times the last decade? What came of all those conference championship appearances? The playoff diss is getting old as hell. Yea they haven't won a playoff game since 96. So what? Some fans are satisfied with playoff wins. But TRUE cowboys fans want more than that. They want superbowl wins. So to all the haters why do you over exaggerate about 'how much the cowboys suck"? Unless your team is The Rams, The Ravens, The Patriots, The Bucs, The Steelers, The Colts, or the Giants then what makes your team any better than dallas? Because they haven't recently won the only game that matters either if they're not one of those teams. So give me your thoughts. Why does dallas get so much hate?