Hang on, but we already have a library of DVDs?! The main benefit of streaming and what makes it worth the effort is you have thousands of films available. You've just ignored that part. Yes, that is absurd.
Honestly, that time where I had HBO, Netflix and Disney+ at the same time, it still didn't feel like I had even 1000s available, getting them listed and sorted by something relevant (like year of release) was a pain, and it seemed like the same 6 orange-blue shaded poster appeared first in every category.