Since certain "progressive" folks working in Silicon Valley have appointed themselves as the arbiters of the internet, they've been taking down a lot of videos. Luckily for us, there's a few easy ways for us to save videos on various social media sites.

YouTube

For YouTube, you can download a free program called VLC Media Player. You can use it to stream YouTube videos, and from that point you can recover a URL that you can use to download a full length video. (Note: Not sure if this works for livestreams).

https://fossbytes.com/how-to-download-youtube-videos-using-vlc-media-player/

Twitter

For Twatter, you can use the site below to "download" videos embedded in tweets. I say "download" because it really just points you to where on Twitter's servers the videos are stored.

https://www.savetweetvid.com/

Streamable

Unforunately I tried using VLC and it didn't work, but after playing around with Brave's developer tools this might be one of the easiest sites to download videos from.

1. Open your browser's developer tools (Ctrl + Shift + I on Brave/Edge and I think Chrome/Firefox as well)
2. Go to "Network".
3. Navigate to the Streamable URL you want to download (if you are already there, just reload the page)
4. Under the "Name" column, look for an item with ".mp4" in it. It's pretty predictable, e.g. if you're on https://streamable.com/nwak30, then there should be an item named "nwak30.mp4?...". Right click on that and "Open in new tab". A file save dialog should automatically appear in most browsers.

When all else fails...

You can always use screen recording software.

Bonus Step

Feel free to re-upload your video to a non-cucked site like Parler or https://video.maga.host/. Also add any additional advice or instructions for Zuckbook in the comments.