The incendiary first track from Green Day’s 12th album, Revolution Radio, places Billie Joe Armstrong inside the head of a teenaged mass shooter, a “semiautomatic lonely boy” who wants to be a “celebrity martyr”; for now, in his mind, he is “Daddy’s little psycho and Mommy’s little soldier”. It is a very good track and a return to form for a band who appeared to be on the brink not so long ago.

Pop music isn’t averse to tackling real-world issues, and Bang Bang is nothing if not topical. As Armstrong told Rolling Stone this week: “It’s about the culture of mass shooting that happens in America mixed with narcissistic social media. I don’t know why someone would ever do something that horrific because I know I never would.”

A 44-year-old man going there is not as portentous as it might sound. The pop punk genre of which Green Day became champions is based entirely on teenage alienation and small-town ennui. It’s widely traced back to SoCal trailblazers Descendents, whose 1982 debut full-length, Milo Goes to College, deals entirely with, if not mass shootings, that disconnected mind that so often leads up to such tragedy. And while taken as a set text by any number of heavyweights who know a lot better, its homophobia has gone some way to discrediting the genre in more polite musical circles. (I’m Not A Loser putting things most bluntly: “Go away, you fucking homos.”) The band’s Bill Stevenson said in a recent Reddit AMA, “We would have done things differently if we had known better, but we did not. We were 15.” Singer Milo Aukerman said there had been “some updating of the lyrics in that regard”.

Which is sensible enough as wisdom after the fact. But it set a trail that would leave this musical genre defined by a dorkish, snotty and, at times, misogynistic tag it would never really escape. Blink-182 have never been allowed to be considered more than the band who released the (really rather excellent) Enema Of The State, made a million dick jokes and whose spirit animal is Stifler from American Pie. Yet you’ll be hard-pushed to find a band who take themselves more seriously than Blink-182: Travis Barker has a legitimate claim to being one of the best technical drummers around.

It’s actually a wonder Green Day even made it to another record after the drama that followed them last time. In itself, their 2012 trilogy Uno!, Dos! and Tres! was a flawed confection, even if you put aside Billie Joe’s meltdown on the stage of iHeartRadio, which set up a trip to rehab and the subsequent jacking of most of the promotional schedule.

The ambitious gesture failed on almost every level. An attempt to get back to scratchy basics while showing all colours of style, the trilogy ended up projecting the band’s rainbow too wide. Inevitably, it made the classic mistake of hiding a great little 11-track album inside a sprawling statement. It all spoke to a wider contradiction within pop punk, whose purveyors are the cerebral champions of deliberately shooting for dumb-ass – something which no longer worked when they reached age 40. Blink have soldiered on but Green Day, of course, had long since graduated to something bigger.

2000’s semi-acoustic Warning was a wholesomely emotional delight, and the concept opera American Idiot went against the odds to prove an enduring masterpiece. Revolution Radio, it seems, wants to go back to that smarter ground while ditching some of Green Day’s stadium excess. Green Day sound as though they are again becoming a force to be reckoned with, even if they’ll never quite be called “credible”. Bang Bang makes, if not a statement, then a powerful observation of a country going wrong (the title track was inspired by Armstrong joining a Manhattan protest over the killing of black teenager Michael Brown).

Blink-182 and Green Day’s return ultimately proves pop punk can still shine an uncomfortable torch on society, while not forgetting the power of a well-placed dick joke.