The corporate capture of the airwaves might seem like a third-rate issue to be all hot and bothered about, particularly if you don't remember what the broadcast environment was like in the 1970s and the 1980s (and earlier, I assume, but I have no personal reference for).
having people from your local community be the ones who are broadcasting news and entertainment for your community is a big deal! it's representation and it's focused on the needs of your community. it's not a platform for ad sales, it's a communications channel, a commonality, a way to bring people together.
the broadcast realm is as much a third place voidspace as this fediverse of ours is, but it's been entirely contained by the oligarchs whomst hoard. a big part of me thinks if we could reclaim that voidspace again we'd be well on our way to fixing a lot of what's fucked, but I lean towards that space and am definitely biased. but, consider the possibilities...