Now that everyone has a voice, opinion is treated the same as fact, division is treated as news, and weight of numbers decides who's won. Even sockpuppet trolls working for a hostile power half-way round the world count.
Also there's a religion-shaped hole left behind in the human soul, and that hole has been filled with popularism. Just like religion, it requires no real sacrifice apart from obedience, has easy answers to any problem, and has easily defined external evil things to blame.
So that's my 2p (value not guaranteed due to plummeting exchange rates).