You're both wrong.
The biggest uploaders of copyrighted content - are the copyright holders.
Also, Google spent about $1 billion on legal fees after the YT purchase, so there was no "agreement" without a war.
HN downvoters ... learn to read. Here, I'll spoonfood you:
"For years, Viacom continuously and secretly uploaded its content to YouTube, even while publicly complaining about its presence there. It hired no fewer than 18 different marketing agencies to upload its content to the site."
https://www.zdnet.com/article/google-viacom-wanted-to-buy-yo...