Broadcast radio has been a cheap way to target everyone over a wide geographic region. With catastrophic consequences seen in the massive wars in all continents that were fueled by radio propaganda.
I much prefer living with today's polarization and people disagreeing on minor things like those you mentioned, than in the age of one-way broadcasts where there is no arguing and no other perspective at all.
Do you really? Because at least in the US we are approaching an inflection point where a third of the country decides to kill a different third while the middle third starves to death or dies of disease. I question the notion that adding pundits, industry shills, and random-ass suburbanite influencers to the conversation balances that equation.
I much prefer living with today's polarization and people disagreeing on minor things like those you mentioned, than in the age of one-way broadcasts where there is no arguing and no other perspective at all.