It elevates Darth Vader
Let’s be honest here, the main reason you like the idea of Anakin being the Chosen One is because it turns Darth Vader, who is your favorite character, into the most important person in the entire galaxy. 😂
If Anakin was not conceived to be the Chosen One of an ancient Jedi prophecy, the Prequels could have been written with the same story, and nothing would have changed at all.