Another reason why US media is so dominant: It has the largest population of any English-majority speaking nation. Another thing: English is the second language for an large portion of people under 40 in the world.

I remember when I first learned about the size of the Japenese media market (TV, film, music). It is ENORMOUS. I could not understand how, as 99% of Japanese language speakers live in Japan. Then I realised that Japan is highly developed (wealthy) and has a huge internal market of ~120 million people.

    > My daughter couldn't name a single actor even if she wanted to

I doubt it. You should ask her. If she is 10 years or older, she certainly has some favourites. If she has social media, ask her who she follows. I am sure there are a bunch of actors & actresses in her list. I'm not saying this to pass any judgement on you as a parent. Only that I doubt the authenticity of your statement.