And that's the thing. One could make the case that in a world of UBI, copyright diminishes in relevance. If the intent of copyright is to allow people to use capitalism to create wealth via their words so that they can live a "life of the mind" and pursue grand ideas... If UBI gets us the same goal then that does something to the good/harm balance of the temporary monopoly on ideas.
The key point is remembering that copyright isn't some divine right stemming from the muses blessing the author with their own exclusively-owned words; it's a right societies fabricate because we believe it will incentivize people to build new knowledge that eventually benefits everyone. It's that incentivization that's the goal.