Copyright imbues the creation with a level of uniqueness that is greatly exaggerated
Given a set of facts & tools people will come to similar or identical conclusions
So What?
Should that entitle you to be a gatekeeper forever?

Humans have an urge for legacy. Legacy is probably the most destructive of human traits, it manifest as hoarding a bunch of resources, having as many children as possible, being noticed, being "famous". The last two are having your legacy NOW

Legacy is self preservation exaggerated to extremes