Why doesn't Prime Video extend the license rights for popular series?

For example, like The Vampire Diaries or Pretty Little Liars. As a result, a lot of content is lost, but remains on Netflix.

As a result, Prime only loses competitiveness against Netflix because content on Netflix does not contain Prime Video anymore

If it costs more than profit, the contract will not be extended.

Prime is also rather moderate in the original segment and is therefore dependent on licensed series.