"... us with our OSS ad blockers turned on."
That's great, but personally I do not use an ad blocker because I do not need to use a browser to search, download or watch video. Nor do I need python or youtube-dl. I download videos with something like
curl -4o 1.mp4 $(curl https://www.youtube.com/watch?v=1234567890a|sed "s/\\u0026/\&/g"|grep -o "https://r[0-9]\{1,2\}--[^\"]*"|sed -n /itag=22/p)
except I do not use curl.
I play videos with ffmpeg-based players. I do not need to be online to play video.
Tech companies that rely on advertising to generate revenue (and thus need "scale") want others to believe advertising is necessary for there to be free stuff shared via the internet.
I know that's not true because I have been downloading free stuff via the internet, including video, since before YouTube or Google existed. I also know that peer-to-peer is the most efficient way to share stuff, not server-client. Middlemen selling ads are not necessary.
People are going to share stuff for free as long as the internet exists, regardless of whether Google or anyone makes money from advertising. That's what makes the internet interesting, not middlemen like Google or people using the internet for commercial gain.
"That's all I know."