This is a strawman, nobody is arguing that people should not be allowed to demand compensation for their work, authors and musicians were able to demand compens

This is a strawman, nobody is arguing that people should not be allowed to demand compensation for their work, authors and musicians were able to demand compensation no differently from anyone else before IP came around, the problem is the demand that they should be granted a monopoly and control over the physical property of others, that is what IP is.