It’s the fault of copyright. Restricting what shows you can stream to your users instead of, for example, being required to pay a royalty, inevitably leads to this situation. Netflix being the sole company allowed to stream every show and film would result in a monopoly that would be bad for everyone as they progressively sought to increase profits year over year. One company having all that power would not be a good thing for anyone, including content holders.
The solution is simple: every streaming service should be allowed to stream every show/film in every country. Then, piracy can only compete on price. That requires significant copyright reform, however, and is very unlikely to happen.
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