If I use a single sample from a single record (say, drawing from the Amen Break) to build a small number of songs, that's fundamentally different from being able to wholesale lift the musical stylings of every artist across time.
Remix culture is important, and copying small elements out by hand with intention is an important part of remix culture. But the scale matters. The industrialization matters.
A kid taping the radio is different from Spotify selling every piece of music for a subscription and sending (almost) nothing on to the artists. Sure, both cut the artist out, but the scale matters.