"Stealing videos"?!? Are we back in 2005 again?
All the videos are _already_ available anyway, several minutes after they're available on Netflix. And on Youtube they are _literally_ free, with ads. People sign up for Netflix subscriptions to not bother with torrents and pirate forums, and for Youtube Premium to avoid ads.
That's why it makes no freaking sense to _not_ make your content available for paid subscribers using APIs.