'Ideas' are not property. Any more than 'slaves' were property.
I'd argue that 'minimum wage' laws are what is required for 'ideas'. A guarantee that you will get paid for use of the ideas.
Labeling 'ideas' as 'property' actually retards economic activity. Especially as the 'IP' time period approaches 'infinite'.
When a good new idea is 'owned' for 100+ years, then that means the vast majority of society can't use the new ideas.