In what sense (taking my edit into account) is it debatable that today's copyright law gives creators a robust set of rights to control the copying of their wor

In what sense (taking my edit into account) is it debatable that today's copyright law gives creators a robust set of rights to control the copying of their works? (Perhaps our disagreement is over our use of the word 'right'? I had meant it only in the concrete legal sense, and in that sense I don't think there is much to debate. Though if one uses the word in the broader moral sense, I agree that the proposition is very debatable.)