For both you and OP, first of you, thank you for "elitarian", but even after reading the definition, I still think you both meant "elitist".
And even though I probably tend to agree with both of you, it's kinda funny to blame French or German speakers about being elitist against English speakers, of which native speakers are notoriously monolingual :-)
"Using your mother tongue is elitist" is bullshit on an epic scale.
It's litteraly your mother tongue man, everyone outside of the elite has a mother, and therefore a mother tongue, it's not expansive, it's your basic birth right.
Why don't people consume audio/video in a foreign language ?
I'm a polyglot myself, so I enjoy that very much, but the simple truth is that most people don't invest the time for becoming fluent in other languages in countries with a "big" language. Works for France, the US, the UK, Spain, Mexico, Japan or China.
Why ? Pretty obvious. Become fluent in a foreign language is a huge effort. Making that effort really only works if you either WANT to do it or if you NEED to do it. The WANT factor is the same everywhere but the NEED to learn a language is way lower if your mother tongue is in the top 5 - or top 10 languages of the world.
The only thing that is specific to French is that French & English have this weird shared history that makes the written langauges very similar and the oral languages very different. So a frequent compromise for french speakers is to become fluent enough at reading/writing, but quite bad at hearing/speaking.
I don't blame anyone, I'm Italian and I'm fluent in French, English and Polish besides Italian.
I'm just saying that in the French part of Switzerland English wasn't a given among any generation and it neither was common in the German/Italian parts too if you exclude the expats.
And yes, francophone tend to be very elitist about consuming exclusively french content, regardless of them being from France, Switzerland or Belgium.