Not for longer run...
Just imagine Netflix without the any other shows rather than Netflix originals...no one will buy it in states...because if you wanna sustain for longer run you need quantity...
Just an Example:
In Netflix you are watching stranger things TV Show after that you wanted to watch Avengers or some other theatrical release movie ....but you cant because Avengers will be available only in Disney+ and Netflix got lot of subscriptions currently because of It's quantity which is ultimate alternative for cable and once It lost it's quantity subscribers also will be lost..
Note: Most of the Movies/Tv Shows available in cable will also be available in Disney+ and HBO max..which will eventually make these two on top