You're probably on the wrong team, can you change? The developers are probably pretty good, but talent and attitude are completely orthogonal. My guess is that there's one or two folks on the team that have this sort of negative mindset naturally, and they've infected the whole team with this style of interaction.

Maybe it's for political reasons, or maybe it's just their own personal insecurity. Bottom line is that you're not doing yourself any real favors being around them. They are not the gatekeepers for engineering expertise. There's plenty of other great developers to study, look up to, and emulate.