Streep worked with young actresses who encountered Weinstein, Hollywood is a very small company town, there is no way that she didn’t know that he was assaulting these young actresses.
How did Streep get HER start, do you think that she is unfamiliar with the casting couch?
I doubt the younger actresses that worked with her talked to her about it. She could have heard rumors but if he never did it to her then maybe she just thought it was rumors.
Streep got her MFA from Yale. She wasn’t some Los Angeles hottie, she was a legit talent that started in theater in NYC doing Henry V, The Taming of the Shrew with Raúl Juliá, and Measure for Measure.
She was spotted by DeNiro in one of the NYC plays and he thought she would do well as his GF in The Deer Hunter.
The rest is history.