Acting is the second lowest art form
Prostitution is the lowest art form. But acting is a close second. Both careers have a lot in common. One is socially respectable (barely.) The other is not. But any john knows that prostitutes are far better actors than the cream of the Hollywood crop. The greatest insult Nietzsche could throw at Wagner was that he was the greatest "actor" among top artistic geniuses. (But of course Wagner's actual art was far, far more than acting.)
Streep's dissing of sports as if her acting were a serious art form is laughable. First of all let's separate real creative art from "performing" art. Performing art is not a real creative art. It is just performing what someone else has created. A pianist is a performer. A dancer is a performer. An actor is a performer. But it takes years and years of work at technique at least 8 hours a day to become a great pianist or dancer. Any idiot can be considered a "great" actor without any training at all. Look at all the silly celebrities with Oscars on their mantles!
Real artists are the writers or composers or (lesser so) the directors. It is the writers and true creators that live on. Not the performers.
Idiot actors are obsessed with being called artists. But they are not. They are generally extremely weak people with extremely fragile egos who need to be pumped up with importance puffer y to stop them from having nervous breakdowns, becoming addicts or killing themselves. Actors deep down know that they are unworthy fakes with no real character or talent and that is why they hate themselves.
Only an actor would think that people would actually care what they think about anything other than acting. The corner prostitute has much, much more to say which we can learn from.