In fact, if _just taking_ someone else's material possessions (rather than intellectual work) was legal, why would anyone build anything they can't physically protect themselves?

A lot of the people bashing on copyright seem to have no concept of the second order effects abolishing copyright would have and no intention to game it out.

Copyright has issues. For example it protects corporations instead of individual creators and workers. But not having it means rich people who own brands and have access to massive advertising can just take someone's work and make money from it while contributing nothing of value by themselves.