They don't think, they just spit out verbatim what they are told. George Carlin and Frank Zappa nailed it decades ago 

I am gross and perverted
I'm obsessed and deranged
I have existed for years
But very little has changed
I'm the tool of the Government
And industry too
For I am destined to rule
And regulate you

I may be vile and pernicious
But you can't look away
I make you think I'm delicious
With the stuff that I say
I'm the best you can get
Have you guessed me yet?
I'm the slime oozin' out
From your TV set