seriously 2009 was the last year where people were still listening to rock. in 2009, the rock bands that were popular were Nickelback, shinedown, 3 doors down, paramore, boys like girls, green day, all-american rejects. in 2008, it was nickelback, paramore, finger eleven, etc. in 2007, it was nickelback, all american rejects, fall out boy, three days grace, the red jumpsuit apparatus, my chemical romance, avril lavigne, etc. in 2005/2006, it was all american rejects, green day, nickelback, staind, 3 doors down, fall out boy, three days grace, panic at the disco, AFI, SOAD, red hot chili peppers, evanescence, etc.
then the year 2010 arrived and suddenly rock bands weren't on the top of the charts anymore. but honestly even in the year 2010 rock was more popular than it is now i guess. and in the early-mid 2010s, bands like foster the people, imagine dragons, lorde, etc were being played on rock radio and labeled as "alternative". those bands aren't rock they're just pure pop. real alternative is bands like weezer and smashing pumpkins.