The median age of known rioters in the Capitol was mid-40's. Young people were certainly involved, but the Capitol riot wasn't what most people would consider a youth movement. Talk radio might want to reach those younger people involved, but there's little to no evidence it's very successful at doing so.
When you listen to talk radio, the hosts are mostly white guys. You can find a few female and African American conservative talk hosts (Dana Loesch and Larry Elder immediately come to mind), but they are few and far between. As The Big A mentions, talk radio is mostly white men talking to white men. I suppose I don't know the hosts and can't really say whether they're angry, but some of them definitely sound that way.