What cowboy fans from the Dallas/FW area don't understand, is cowboy fans in NYC and especially Philly are incredibly obnoxious and stupid. It's they that know little about their own team.
They have all the bad qualities of eagles fans (insulting manners) with none of the good qualities (mental toughness to stick w a team that hadn't won a championship in 60 years).
This is why eagles fans hate the cowboys more than the giants. Giants are the better rivalry, but cowboy fans in Philly are such garbage people, it creates more hatred for the cowboys.
Yes, having something called "America's team" in your division, when they haven't even been to s NFC championship game in 25 years, also creates major annoyance for NYC and Philly fans who've been far more successful over that period of time (not a short amount of time here, we're talking about a quarter of a century).