They're opening for blink-182? I would go into rage like people did when Bad Religion opened for Rise Against, but it's understandable. There's no doubt about who the bigger band is, and if Rancid headlined - sure, it'd be a sign of respect - but it would end up being a slap in the face as the general fanbase for blink-182 and MCR would leave before Rancid came on.
Regardless, I'm stoked for the new album!
Bad Religion opened for Blink 182 too. haha