Previously could get around it using the /embed/ url or third party sites like youtuberepeater. Seems like these methods have been closed.
> It's using technology to identify age-restrictive content so that when viewers discover age-restricted videos embedded on most third-party websites, they will now be required to log in to watch those videos in order to verify their age.
https://www.axios.com/youtube-age-restrictions-children-91db...
You can also enqueue them, if you want to play more back to back. I normally use it in conjunction with the RSS feed of channels.
Activists, however, may have more leeway. Documentaries on animal cruelty and slideshows from anti-porn activists (to name two examples I'm familiar with) are much less hesitant - their goal is to rouse emotions and face-value judgements, so long as the viewer is primed to interpret the materials in the desired way.
The thumbnails are more Rated-X than I anticipated, and I wouldn't want to link to any of those videos either.