That's not correct in the case of copyright. Independent invention can be used as a defense to a copyright infringement claim.
> Generally, a plaintiff proves copying through circumstantial evidence, showing that the defendant had access to the copyrighted work [...]
>
> [...] unlike in patent law, if a defendant independently creates the substantially similar work, he is not liable to the copyright holder.
> Generally, a plaintiff proves copying through circumstantial evidence, showing that the defendant had access to the copyrighted work [...] > > [...] unlike in patent law, if a defendant independently creates the substantially similar work, he is not liable to the copyright holder.
https://www.finnegan.com/en/insights/copying-copyright-s-wil...