This is why I am not aware of anyone ever being sue or otherwise held to account for DOWNLOADING copyrighted works. They always Sue over DISTRIBUTION. BitTorrent got the tag of "Sued for downloading" but in reality people were sued for seeding, ie distributing. I am not aware of any leecher that was sued.

Similar of Usenet, Uploaders, and usenet providers get sued, but downloaders?

The entire point of copyright is about preventing unauthorized distribution,

So you must have missed all the filesharing lawsuits over the last 25 years. Lots of people got sued for just downloading, not seeding, just downloading.

Copyright is primarily about copying.

https://www.law.cornell.edu/uscode/text/17/106

Subject to sections 107 through 122, the owner of copyright under this title has the exclusive rights to do and to authorize any of the following: (1) to reproduce the copyrighted work in copies or phonorecords;